This reads, to me, as completely unrelated on nearly every level to earlier statements by you and others about changes to the art overall.
Sure, the color palette range and clarity of images has changed from book to book. as have elements of the art direction, and the artists of course, and different books have different intended tones. It would be weird for a book about the Radiant Citadel to have the same grimey ill-lit look as some of the art from the darker-toned recent books like Rime or Avernus.
But not liking blue, purple, and pink, in fantasy art is just...not something I'm inclinded to view as important? Like I don't like a lot of red, orange, and yellow, but I don't expect anyone that isn't an artist I've commission to do a work to care at all about my preference there. Well, and my wife, when we are talking about decor, I suppose.