Bouncing this because I just read the new Tales from the Storm about how Estinien got his SB armor, and incidentally, where the DRG AF3 we receive came from. And I'm livid.
Eureka, specifically Anemos' stages of the relic weapon and armors, actually spit in the face of the sets' lores. These are items that had a story, a history, and some, depending on how the additional, out-of-game lore handled it (and why couldn't it have been in-game, SE? yeesh. guess I'm getting that new lore-book), are actually tied to NPCs you have a strong connection to.
Not only is Gerolt's tempering with them treated as just something off-handed (even a half-thrown line about how they're using Eureka's materials to upgrade your meaningful gear would've been better), but the weapons end up being transformed into something else altogether in Pagos. AFs never matured well with time, but nor were they stepping stones for something else. The personal feeling and journey of both Relic->Zodiac and Anima weapons was a huge selling point for me, and if Anemos is anything to go by (I swore off Pagos until the nerfs), it's completely missing from this relic iteration.