Why? Winning the lottery of ownership is by far the most reliable way to challenge the established elite clubs.
Those established elite clubs came up with the super league in part to stop that and create a closed club for good.
You could be pro Saudi ownership and anti the super league without being a hypocrite.
TBF, a closed Super League was pretty much the only reliable way to go about legally and effectively creating a framework which would allow for cost-control measures (i.e. spending caps, even revenue split) which can create a meritocracy with parity. Its why practically every other sport around the operates a closed model.
Was that in the initial proposal? Absolutely not. But the initial proposal created a model in which those measures could be introduced - and the initial proposal was cooked up by people like ENIC, FSG, and the Glazers who absolutely had that model in mind.
In a closed system and even revenue split you can institute spending limits without anyone crying foul and claiming your rules endanger their investment - even with a bad season, the worst club will still be roughly as profitable as the best club. Clubs no longer have an incentive to focus on finances over sport, they're protected from endangering themselves. The "business" becomes a totally adjacent matter to the sport,, and the owners generally keep their noses out of the on-field stuff. This is what so many here constantly whinge about, caring about the results on the field not the balance sheets.
Likewise, in such a system, it doesn't matter who sells the most tyre sponsorships - everyone shares in the money, and everyone's finances are regulated the same. It comes down to who can scout, develop, and acquire talent within that system the best.
It just works. It comes at the cost of being able to fall asleep dreaming as a 10 year old about winning the lotto, buying Derby, and making them champions of europe. But financial doping plus the invasion of investment tycoons and explosion of costs means thats really all just a fantasy anyway. As incredible as Leicester was (cunts) does anyone think it'll even remotely happen again - especially since the number of doped clubs only seems to grow?
Whats the alternative? Even FFP actually damages the chances of lower clubs more than higher clubs - it locks in their proportional spending advantage, and its why FFP was concocted not by the poor clubs but by the rich clubs.
Just like with the minimum wage for regular folks, trying to address wealth inequality by leaving the system open and not forcibly extracting wealth from the top and redistributing it downwards will only fail. There's no way to make that equation balance. The open system is built for inherent wealth aggregation.
So yeah, the ESL was shitty and was going to kill football. But 21st century football is really already shitty and dead, we just like to con ourselves into thinking the opposite. Football was sold the day they put a sponsor on a shirt, in all truth.