Sure, I can understand those arguments in favour of having a 3rd party store, but that's not what the parent is arguing, nor what you said in your original post

Sure, I can understand those arguments in favour of having a 3rd party store, but that's not what the parent is arguing, nor what you said in your original post. All of these do affect the user. You think it would be a better ecosystem, but some users would not agree it's a strictly better approach. I for one don't.