It's also a little different paradigm now.. the spring leagues are effectively made-for-TV leagues. Because of their well designed tv contracts, they don't really need in-person ticket sales. It's not a good look to have empty stands, buy their financial model doesn't rely on ticket revenue (as I understand it).
The bigger concern at least to me would be that it's declined for most teams since last season, but not enough of one to where I'd question the stability of the league. Though it may inspire them to move some markets around before next season and I don't know that they'll expand from 8 quite yet.
