Rummenigge "A super league outside of the Champions League is being born. It will either be led by Uefa or by a separate entity, because there is a limit to how much money can be made."
So he even admits it's purely about making money. You'd like to think the fans wouldn't back this at all but sadly they would, particularly the fans of the clubs struggling to make the champions league every year. Liverpool fans for example would lap it up.
If there's any restructuring of the champions league to be made then it should be to make the champions league literal. I.e only the champions of each league gains entry, i recognise they'd be a lot of big clubs missing out particularly the spanish and English but it would also solve the problem of the Europa league being pointless.