Sure, except now rim and tire manufacturers go to the opposite ends of manufacturing tolerances on their respective parts because no one wants some niche road tubeless setup popping off at 7 bar. The result is tires like the GP5k (not even TL version) where I've struggled to get even the first side over, on rims that are tubeless ready and, no coincidence, have a history of being difficult to fit tires on.

I want to be able to fix a flat outside, not call an Uber.