How did we not realize this about the man made echo?

[Vyrerus]

Absence of evidence is not evidence of absence. One reason to critically look at the lore is to try and gauge what's coming next. Who knows, maybe those Warding Scales will double up as radiation film badges/corruption dosimeters, and we'll rotate out Scions who have been exposed to too much corruption recently. What if the Criterion Dungeons, the first of which is scheduled for around 6.2 on the roadmap, are sitting in the Void, and Eikonic Corruption is a scalable difficulty factor?

Then we'll still have the hole that is Nero when he turned purple due to all that void corruption, but then got better after Doga and Unei did whatever they did to Cloud of Darkness off screen. I would love for them to explain purple Nero though heh.

Edit: (though there's also the possibility that he got a voidsent in him, and just hasn't been forthcoming about it).

[RyuDragnier]

Then we'll still have the hole that is Nero when he turned purple due to all that void corruption, but then got better after Doga and Unei did whatever they did to Cloud of Darkness off screen. I would love for them to explain purple Nero though heh.

Edit: (though there's also the possibility that he got a voidsent in him, and just hasn't been forthcoming about it).

There's a possibility that Nero getting better was in fact Dynamis, considering moments before the purple corruption shattered off him, he swore that this was not his place to die, that he will live on. That, like many possibilities of dynamis though, are pure speculation and can't be fully explained unless the devs tell us what happened.

[SentioftheHoukai]

Honestly? The reasoning is rather simple and easy to understand if you ask me. It's yet another beneficial plot point needlessly attributed to Hydaelyn in Endwalker to further convince us of her righteousness. Just like how in 6.1

the 12 in Aglaia are very likely going to be revealed as further creations of Hydaelyn.

It's actually kinda funny how desperately they're trying to paint over her ever so slightly tarnished reputation.

[TheMightyMollusk]

One thing I haven't noticed anyone mention yet is that the Resonant (or at least Fordola) got their powers by copying Krile, who possesses both the Echo and the Blessing. That kinda muddies the water further when trying to figure out the difference. Zenos also doesn't help solve the debate, as he's shown to have other unusual powers from being the great-grandson of Emet-Selch, an unsundered Ancient.

The impression I get is that the Echo is the mark of a reincarnated Ancient, which provides protection from tempering (among other plot-related powers, like our flashback viewings), while the Blessing allows us to call on Hydaelyn's power more directly. But the writing has never been terribly clear on the difference, and we've met so few people with a genuine Echo (Minfilia, Arenvald, Ysayle, Krile, Mikoto, Ryne, and the Warriors of Darkness are all I can remember, other players aside) that we don't have a huge sample pool to pull from. Kinda feels like even the writers forgot the difference after a while.

[KageTokage]

Didn't Ryne specifically state that she doesn't have the Echo and rather she possesses an extra potent version of the blessing?

I was under the impression that was why she lost control when she tried to perform an incarnate summoning with Shiva as Zenos suggested that the Echo does not simply shield us from a primal's influence but rather makes our own influence greater, which is why he was able to impose his will over both Shinryu and Anima.

[SannaR]

Correct Ryne has said that she's never heard Hydelean's voice.

[TheMightyMollusk]

Ryne's also on the First, where Hydaelyn couldn't reach without Minfilia acting in her stead. And nobody heard Hydaelyn at all throughout Stormblood and Shadowbringers, so given Ryne's age and the timey-wimey shenanigans going between Shards, that's hardly conclusive evidence. Arenvald is also never mentioned as hearing Hydaelyn's voice, but he's protected from tempering.

As for Eden Shiva, I got the impression that while Ryne was never tempered, that didn't mean she could control the primal. The same thing happened with Yotsuyu and Tsukuyomi, and she wasn't shown to be tempered either. Zenos could control Shinryu by a combination of his Resonant power, focus (Zenos has no conflicting emotions to distract him from his goal of "must fight the WoL"), and Shinryu possibly having no particularly discernible sapience to begin with.

[Lucida3b]

Yes, they updated all Hydaelyn stuff of MSQ roulette and it sucks. More retcons. (And I hated every minute of it)

Which parts were changed the worst? it seems more just explicit/cinematic than anything like the current shitshow with the blessing and echo. I'm pretty convinced there was a massive rewrite around venat and things related to her that made a bunch of stuff made no fucking sense

[Vyrerus]

Just got up to Ktsis Hyperboreia on my Endwalker replay, and happened to notice that the super saiyan blue aura that Venat uses in the instanced sparring match is the same exact aura she gives the WoL now in the fight against Lahabrea.

[Quor]

I always saw the blessing and the Echo as essentially two sides of the same coin. Both granted immunity to primal tempering, but the blessing was really more of a "shoring up" of defenses on top of the normal resistance granted by the Echo. So I don't think it's a retcon nor do I think it's an "either or" situation, even if in-game characters often conflate the two.

We do know that the Echo is not infallible; the Ascians were tempered by Zodiark, via Emet's admission, with Livingway talking about how a being as powerful as Zodiark - summoned without the desire to temper others - was so strong that it was expected for people to feel a little "tug."