Other projects have to do a lot of work to support OS X too. So I guess I still don't see your point. Electron, for instance, had to program an entirely different object model to represent OS X's kludgy global menu bar when every other OS has menus attached to application windows.

I can't believe your defending OS X though when Apple makes you buy a whole computer from them to use it...meanwhile I can run a 6 month trial of Windows (over and over again) on any virtual machine. Honestly, it's way more work to support OS X than Windows if you really bother to look at it.