>provides a “small” way to test the change in assumptions that creates the big solution
Isn't this the problem. Unless we discover some primordial black holes, all black holes we currently know about are way too cold, and will be way too cold for billions of years, to test anything.
GR predicted black holes, but GR wasn't about black holes, and there were plenty of other things you could test.
I think you are missing the point of the parent comment. Changing the assumptions doesn't just change how we predict black holes will behave, it should have impacts on other things that we can measure.
Isn't this the problem. Unless we discover some primordial black holes, all black holes we currently know about are way too cold, and will be way too cold for billions of years, to test anything.
GR predicted black holes, but GR wasn't about black holes, and there were plenty of other things you could test.