>Do you think it's acceptable that it took 4 years for Minimal APIs to get validation?
Well thay don't call it Minimal API for nothing. Jokes aside, what stopped you from calling validation yourself explicitly?
>What about hot reload being broken for years and years?
Can't comment on this, because I have never needed it. I can work faster with writing tests, but I guess it's fair to assume there are some who would need it.