I think people have the right to complain, since the game is really very old and many players have gotten used to their characters.
As artist, I know that sometimes a person wants really small edits in a portrait, so that they say "yes, this is my face".

And it's not about the updated lighting, but about how many details of the characters have really changed in a game where a small shadow under the eyes or a barely noticeable choice of iris size is considered as Fantasia-worthy character edit.

They still have time to fix some things, it's mostly about texture edits and shapes edits.