Well sure it worked out great for Apple. By preventing users from sideloading emulators or playing real games, you force them to purchase gambling apps and low-quality slopware to entertain themselves. "Real world" game developers like Nintendo outright gave up on iOS/mobile gaming because it wasn't a comparable gaming experience.

A good example of this is the Final Fantasy Pixel Remasters, which were so lazily ported that most fans advocate for pirating the originals instead. Why should anyone pay $14.99 for the bad version of FFVI?