So whatever was the story of the missing Deep Dungeon for Shadowbringers?

[Winterfang]

And when they didn't do both the zone had much more content.

Okay, I was only referring to Eureka though, but if you want to drag Bozja into this
1) The groundwork for the Bozja systems was already made in part thanks to Eureka already setting a foundation that allowed for new systems to be worked on (Critical Encounters, Duels, ect)
2) Bozja wasn't completely more in some aspects compared to Eureka. Bozja had two lands to Eureka's four, the Lost Actions systems was was essentially tossing out Logograms mixing and just skipping to the results, and though I do love the content I'm going to say that the environment Design for it was phoned in and disappointing, especially Zadnor. Let's not forget that even what we did get was incredibly rushed in some aspects.
3) Now in EW the shoe is on the other foot, however Deep Dungeons did not do any considerable amount of improvements to prove why it couldn't exist alongside another exploratory zone. Because the work didn't go into Deep Dungeons, it went into other game systems (that are still left wanting even though we are past the half point of the expansion, but I digress).

I don't think we have to sacrifice Exploratory Content for a Deep Dungeon or vice versa, and basing it off Shadowbringers not having a Deep Dungeon, an expansion that had difficulties for reasons that obviously can't be placed on the dev team, isn't something that should accepted as a norm.

[CidHeiral]

1) The groundwork for the Bozja systems was already made in part thanks to Eureka already setting a foundation that allowed for new systems to be worked on (Critical Encounters, Duels, ect)

Correct me if I'm wrong but it seems like all that really carried over was the special action system. Eureka certainly didn't invent large zones or fates.

2) Bozja wasn't completely more in some aspects compared to Eureka. Bozja had two lands to Eureka's four, the Lost Actions systems was was essentially tossing out Logograms mixing and just skipping to the results, and though I do love the content I'm going to say that the environment Design for it was phoned in and disappointing, especially Zadnor. Let's not forget that even what we did get was incredibly rushed in some aspects.

Depends on how you look at it. Eureka has four zones but those zones are just wandering mobs and the occasional NM that pops and throws AOEs around. Bozja on the other hand only has two zones but both zones are full of mini boss fights with much more involved mechanics. It also has three alliance raids, four if you count the savage version. I'd say Bozja easily comes out on top there and that's coming from someone who enjoyed Eureka more than Bozja.

3) Now in EW the shoe is on the other foot, however Deep Dungeons did not do any considerable amount of improvements to prove why it couldn't exist alongside another exploratory zone. Because the work didn't go into Deep Dungeons, it went into other game systems (that are still left wanting even though we are past the half point of the expansion, but I digress).

You're not wrong that it's more or less the same as the previous DD but they still have to design and build all the different floor aesthetics, all the weapons, all the boss fights, all the sound design, etc. These assets don't materialize themselves into existence.

I don't think we have to sacrifice Exploratory Content for a Deep Dungeon or vice versa

I don't presume to know the amount of work the dev team can or cannot handle. I assume if they could reasonably handle both, they would. That being said, I don't think we need deep dungeons or special zones every expansion either. I've seen people on this forum simultaneously complain that X feature is missing from a previous expansion only to turn around and complain the expansion is more of the same. There is only so much content a human being can churn out and I would personally prefer them to use those limited resources to branch out and try new things even if those things don't always turn out the best or appeal to me specifically.