Lets replace "Apple" in your response with AT&T. "You think you know better how to run a successful phone service than a company with the most successful one?". No, I don't exactly, but I have enough common sense to see that they are doing wrong.

And sure they have the most successful (and only) app store compared to the only other app store.

But yea fragmentation/choice is just awful and without a doubt will lead to a less rich experience... totally

Your reply comes off as very authoritarian and controlling. If you like the app store then you should have the choice to use it. What you are saying is that devs shouldn't have access to other options because you dont understand why they wouldn't use the perfect one already there.