While I agree with the spirit of this post I think the answer is fairly obvious https://valerialoves.com/why-didnt-silent-titans-change-the-world/

I look at Silent Titans and I see a) a book that is absolutely *disgusting* - I can't imagine having to stare at those colours and maps for hours on end and b) a setting that has a number of quite substantial conceptual hurdles that a GM would have to assist their group on getting over.

I always feel that Gonzo settings work best for GMs with gamist instincts as play is grounded in mechanics