The Rams were popular in LA in the 60s-70s. By the 80s, the Lakers dominated the LA sports scene, with the Dodgers always firmly entrenched in LA, and the Rams were relegated to Anaheim, where they played to empty stadium game after game.
It perplexed the hell out of the NFL that they could not get LA to clamor and pay up to get a NFL franchise over those 20 years that they had none. Worst kept secret, the fans could not give a fuck about a NFL home team. Enter the traitor Kroenke. Current owner of Jaguars, a U of I alum wanted to buy the Rams and keep in StL. Traitor Kroenke, whose fortune came from marrying into Walmart royalty, had ROFR and exercised it, also promising to keep the team in the town of his birth.
Of course, it was all bullshit and a carefully laid out plan with Jerry Johnson and the NFL screwed the City of StL and got the Rams back to LA. For his trouble, Kroenke got to lay out $5.5B for the new stadium as well as some substantial portion of the $780M settlement the team did with StL, so as not to expose the deceit and duplicity in which they made the move.
At any rate, given all that occurred and what Kroenke put on the line to get a team back in LA, you are naive if you think that Super Bowl wasn't nudged to his team the last couple minutes.
It's all a desperate attempt to get the LA fans to give a fuck about the Rams. Hell, they were out-attended by SF in the last game of the season.
Like someone else pointed out, the future doesn't look bright for the franchise. They mortgaged the future for this title and still needed the officials' help to seal the deal.