I'm not sure, but based on his actions, I would say he's more of a fan of football than lacrosse.... or knows that he has the opportunity to potentially make more money as a football player than a lax player, professionally.
Stanford had plenty of scholarships open because their football program almost never signs a full class. Furthermore, they never sign anywhere close to a full class. For instance, in the 2018 cycle, they only signed 14 players.
They had the scholarships to give. We didn't. Not to a might-not-even-be-good=enough-to-play type like Miezan.