I’m definitely in favour for some kind of subscription membership like this (for scunny fans, by scunny fans obsv). And this could certainly help tip the financial balance into something more favourable.
However, this only takes you so far. Modern football is an astronomical money pit. Even a millionaire can struggle to achieve success. At the top level you need to be a billionaire (preferably one that doesn’t see the club as a toy).
I think it’s very important to set realistic goals/targets and do everything to live within a clubs means. For some this causes dissapointments.
I’d rather have a stable club than one that overshoots and folds.