Too much money being made for them to lessen the season.
well then you have to make the rest of the season matter somehow
cant remember where i read it a few years ago, but someone suggested something like how soccer handles its leagues or whatever. I might be explaining it wrong but essentially you have your premier league then everything under it, but as I appreciate it, there would be an opportunity for the lower league teams to earn a spot in the premiere league while someone gets demoted??
idk, but something like that where you take half the league and make them play for different incentives