Obviously I can't say that's impossible, it would just be... very weird, and would seem to contradict what Apple Developer Relations was saying on Apple's devrel forums as recently as this year.
So its an actual fact documented that it happens. I agree that overall Mac os x still has a very nice ux and I'll never go back to windows.. But it's very clear apple is platforming their os to the degree they will ios. It's not weird it's happening, it's real life...