So if they made floating stats (if that's what they're called), why not make racial bonuses completely floating then? No unique bonuses, just a list of stuff we can choose with whatever race we want. Why can't Dragonborn get polearms? Why not give Elves 20 kg extra carry weight?
I guess I don't really understand the current system, it seems like a half step towards being able to choose whatever you want.
Proficiency bonuses are diffrent than main stats, but yes there is an argument for everything to be floating. That's basically what the linnage systems wotc is testing are.