A CFL team would never fly in LA. It would get no media coverage whatsoever in that marketplace. You think the Argos have trouble garnering media attention in the Toronto market with the coverage the Jays, Leafs, Raptors, TFC, general NFL coverage and more specifically the Bills, and general NHL coverage receive? Imagine if they were in the LA market.
They would be behind the Dodgers, the Angels, the Lakers, the Clippers, the Galaxy, the Ducks, the Kings, likely one if not two NFL teams, USC football and basketball, UCLA football and basketball - daily coverage of those teams and coverage of all the leagues those teams play in generally (MLB, NFL, NBA, NHL, MLS, NCAA - PAC 12). They would be hard pressed to fill a 5,000 seat stadium there and they would be lucky if their games had anything more than just the score listed in the local media at all.