The traffic that you have to deal with to go to a Saints game is everyday traffic here in LA, so it's understandable that people would be inclined to skip dealing with that same traffic on their day off.
Speaking of traffic, even the game between the Galaxy and the L.A. FC is dubbed "el tráfico" (the traffic), a pun on "el clásico" (the classic), which is the name given to the game between the most storied rivalries in soccer.