At the core, it's still "killing trash mobs and bosses". That's exactly why I said context matters.
No, it's not...doing the challenge doesn't require the same setup as chaining 5+lvl monsters, that's a totally different organisation.
Roulette with capped tome gear, normal raid, 24-man raid. And since all of this has a weekly restriction, they last more than a month. And they offer equal or better reward than Eureka...
Well, judging from several threads about Eureka, "lots" of people seem to have given up on the relic because of Eureka. Adding the absurd RNG of Diadem would only make more people skip it (Me included). Back then, they even tried to put the strongest weapon of HW in it, and it did nothing...no, scratch that, it made people hate Diadem even more because it could potentially kill the fflogs competition.
Then, you missed the very vocal disappointment when it was revealed that Pagos wouldn't have armor upgrade.
I thought your problem was that Eureka was the only way of building the relic, not that is was a arduous grind, which, frankly, it's not.
The weapon has absolutely no RNG for the Anemos part, and the RNG for light in Pagos is really not that punishing, especially now that it's been patched. Sure, the coffers are random, but, you seems to have more of an issue with the relic, so it's a different topic. Should I remind you that at launch, no Primal mount is buyable. You had to wait for 4.25 to be able to buy Lakshmi and Susano mounts, 9 months after they were released...Eureka as a whole isn't even 9 months old yet, let alone Pagos, where the first RNG occurs. In fact, by the time Pagos will be 9 months old, we'll probaly be right into 5.0, so it will most likely be nerfed to the ground.
Again, no. Primal rewards only drop in Primals. Savage reward only drop in Savage. PvP rewards only drop in PvP. But, I guess it doesn't bother you as much because you probably like the content or because those rewards are not labeled "Relic".
The Zodiac had absolutely no alternative for most of its step, especially the tomestone requirement. In fact, Light farming was the only thing you could do by doing just about every duty in the game, but was painfully low at launch, and it was nerfed over and over again. And several tome items for the Anima didn't have an alternative too, mainly Umbrite, which was IMO the worst step of the Anima.
Ok, let's say it cost a third. So, with Tint's number, building a full set would require 31 days of grinding 8h/day. It's still way too intensive for even Pagos to be threatened, since you can easily build your relic with less than half the time at that pace. Especially considering that you'd still have to level up just to reach the NPC that gives you the weapon. So again, it's not dodging the question by fear of Eureka dying but a weird question, since you don't ask the same thing about every other reward that lock you into doing one content.