Well they're not squandering anything really. Why leave a team where you're able to play in a comfortable enviroment with other women against a lesser opposition and still get paid? I don't really blame any of them, even if they're good enough to play with men, it's just a massive risk, and they would no longer be able to hardly practice and still be at the top. (I'm referring specifically to the very best female players who can afford to coast by.)
tldr don't hate the player, hate the game.