The Atma quest has no uniquely new content. It's all rehashed content with an easy but extremely long grind.

Compare this to 1.0 relic or even 2.0 Relic. Relic requires Chimera, Hydra, beating all 3 HM primals, double melding a weapon and then a few dungeons and killing mobs.

Relic by comparison is a much more unique, challenging, less grindy quest which is why it was probably a lot more interesting and you don't hear as many complaints about it as you do now about the Atma.

I hope SE really rethinks the next steps of Animus and ACTUALLY make new content for this continuation of the relic.