Personally I find the classic Middle Eastern set ugly and dated, so the less civs that use it the better.
But not for most civs in the East Asian even though the classic one includes Shinto (a religion that only exists in Japan) elements. In fact the whole set is too Japanese to be used for anyone else.
I like how your logic is “they existed around that area” and not “that’s what their buildings looked like”.
For new architectures, I have some ideas:
The “Second East Euro” could follow your suggestion I believe.
And I’ve been forgetting to bring this up, but Tupis would need a new architecture. I’ve seen someone on the wiki say they could share one with Muiscas which surprised me tbh.