One thing that seems to make sense for Sball, Fball, Bball having lights is lightning. A couple storms passing 5 miles away, and delivering little rain and one of those weekday games is for naught. And almost certainly not made up. Of course that is a disaster when it happens in football.
Lights also gives a shot at hosting PIAA playoffs, which I think is a recruiting positive, but Sterrett is no longer interested in