Oh no, I never said it was exclusively them and even if the game is a favorite of mine I will be the first to mention that the kids in NiGHTS into Dreams look terrible now. It just always surprises me to see certain people so positive of the original Rare designs but so aggressively negative of stuff like Nuts & Bolts and to a lesser degree Kameo (which barely changed from it's earlier stages).Haha oh God, that's pretty awful. See Virtua Sanus? It wasn't just Rare.
I seem to remember Mario looking a little weird in the Mario 64 CG renders too, but I could be mistaken.
I think Viva Pinata and even Sea of Thieves has a lot of the classic era of Rare in it aesthetically for better and worse. It is interesting that they have been somewhat able to keep that vibe even after the studio has changed so much. I do appreciate that, honestly.