I've been living in Los Angeles since 1996. How long have you lived in Los Angeles, or anywhere with Mountains for that matter?
You don't know what you are talking about, but you don't let that give you a moments pause. Quick question, what are the main travel corridors that people will use to get to Sofi stadium? What do you know about them topographically? What do you know about the drainage capacity of those corridors?
The NFL should have moved or cancelled the game out of reasonable caution, just like other major league sports have done in the past couple of days.