The community overall absolutely complained about Diadem, but especially Eureka and Bozja, as being grindy, glorified fate trains. It was vastly unpopular content overall. Bozja ONLY escaped slightly from the negative sentiment because for a time period in SHB, it was the primary way of getting EXP, post them nerfing PVP EXP and before buffing dungeon EXP. But initially all were received poorly for both the fate system and in tangent, the requirements of the relic weapon being spam x dungeon/raid. This is likely why they forego'd an expedition in EW and also why Yoshi-P openly mentioned he was "surprised" that people actually wanted exploratory zones again.
Actually, news suggest....
Interview with Yoshi-P, Claims Savage difficulty:
https://www.pcgamesn.com/final-fanta...hida-interview
Official PLL Digest - Claims Savage difficulty
https://forum.square-enix.com/ffxiv/threads/512088
Unofficial Translation of PLL - Claims initial goal was Extreme, but it's tuned closer to Savage 1/2 when factoring in 24 people. Note: this is the only place that mentions Extreme. Not that I'm saying it wasn't said but even then there's acknowledgement that it was tuned higher.
https://x.com/Nova_Crystallis/status...83007271219440
So all confirming knowledge we have of Yoshi-P and devs comments on the content was that it was in fact having an expected difficulty of Savage 1 or 2, not extreme. Community is gaslighting itself.