With fires in San Diego, how come the NFL didn't consider Los Angeles as a site for the Chargers Texans game?

They'd rather play in Arizona (400 miles away) or give Texans a free home game (1000miles away) instead of just driving an hour an a half north and just playing in the LA Coliseum...Does the NFL really want to spite LA that much? Both UCLA and USC are away so no one is using the site. What's the deal?