Are there even statutes of limitations on class action/civil suits of this nature? Still, hard to prove - or, I'm afraid, win - in America 2021.
Meanwhile there's the Flyers lawsuit.
The baseball vs. football thing doesn't seem that hard to figure actually - 81 home games vs. 8 home games, plus hours and hours of non-game time at the ballpark on the days of those games vs. almost none for the football team (nor practices).