Isn't better is an understatement. After Celtic, who would probably be the best team in MLS, only Rangers and Aberdeen could compete for a playoff spot. Don't think that's even controversial. Some dire football played there.Scotland is a natural landing spot/proving ground for MLS guys. Puts you on a better radar for the better European leagues.
I do agree that Scotland isn't better than MLS.
Only reason to go there is if you don't have access to a work permit and want to try to earn one. Not applicable to BAJ.