No idea man, that's something probably only Echo and Aurora knows. They're using some whatever bullshit metric to grade everyone.

[He shrugs, eyes now suddenly more focused ahead of them and looking for those pinball machines.]

...It's not like they're choosing the absolute best person from each universe either.

[He's really talking about himself. Why would they choose a mutant that just got his powers? Some angry teenager with no goals back home? It's definitely stupid. Scott thinks he's far from being a great pick.]