The reason nobody wants this is that is barely moves the needle. Apple is still the de-facto "gatekeeper" if they set the rules for running a third-party app st

The reason nobody wants this is that is barely moves the needle. Apple is still the de-facto "gatekeeper" if they set the rules for running a third-party app store like app review and what specifically has to be reviewed (which they need if they don't want the 3p dumbing down the review process to something like just verifying the name matches the app functionality). I don't think many developers interested in a new app store would take it if Apple randomly blocking them for not having stringent-enough app review is a possibility.