It's not about whether most people care, it's about competitors taking Google at their word and putting in the effort to make a competing store, only to get materially harmed when Google makes these backroom deals.
Nobody's making a third party app store on iOS because apple says "we allow it" so nobody's harmed when apple requires exclusivity to exist on their App Store.
The list of companies that put in serious effort to make a competing store and would have been materially harmed by deals like this is very small. And many were the recipients of these deals.
If this ruling is about helping them, then that makes the outlook even worse for consumers.
Nobody's making a third party app store on iOS because apple says "we allow it" so nobody's harmed when apple requires exclusivity to exist on their App Store.