They don't do that because they can barely keep up with the AppStore popularity. Everything is knee-jerk in the AppStore right now. If you check out the forums

They don't do that because they can barely keep up with the AppStore popularity. Everything is knee-jerk in the AppStore right now. If you check out the forums you'll notice that not all devs are unhappy about this: there was a massive problem with auto-generated apps polluting the AppStore & Apple responded to this in this way.