I could understand why people might want art to portray a broader world that includes them in it, especially when introducing their children to that world.
It must be wild to see the world portrayed as if you didn't exist, and I think it's cool to adapt beloved classics with that in mind. Comic books have tried every thinkable variation of a character, from a Soviet Superman to a black Spiderman. It did not diminish the originals, but offered new versions with new perspectives.
This is something I'm okay with, so long as the originals don't get labeled as problematic or something.
Paintings were a patron-based good that was producing family portraits and things for rich people that the excess of eventually got put into their country houses, that people could come see, forming the first "art galleries".
It is a modern and internationalist view projected backwards in time to have these expectations, and you will find even less worldly representation in the art of non-Europeans from that time, focusing on their own. (Nothing wrong with that).
Contrast what non-European art was doing with the wealthy European Baroque patron who was buying stuff from China and Africa, travelling around the world lot, admixture of various European cultures to produce baroque music (also didnt have copyright so "sharing" common between composers building on each other). This was very diverse and worldly for that time.