Firstly, did this really need another thread? We have 20 threads about this already.

Regarding the eyes. As long as you don't get fully pathtraced games with perfect materials for everything, the "it's more realistic" argument doens't hold much water. Making a tiny part of the game more reslistic, but have that depend on something else that is completely unrealistic (the ambient lighting in FF), doesn't mean it's an improvement. Realism shouldn't be a goal in itself for such an unrealistic system, just make sure it looks better. And I haven't seen any screenshot of scene where the new eyes look better. If something looks better is of course highly subjective, but considering the number of complaints it's a widely held opinion.

Regarding the lips. The complaints about lips aren't only, or even mostly, about how they work with older animations. Lips also have a completely different shape now for many faces. That is both goes directly against the dev's stated design goal, and apparently against the preferences of very many players.