What the hell does productivity machine even mean? Some people are claiming Google's cloud apps as productivity apps and that can be done by cheap tablets. Windows advantage for "productivity" is pretty slight and getting slighter by the minute (and I'm using Windows 10 right now so I should know).
Some people are calling the new MacBook air also a waste of money (and obsessing over the one port...), seems nobody's ever happy except those that actually need and want those products. For them, it's just perfect.
Clearly your idea of productivity is vastly different than most in enterprises. I almost have to believe you are joking comparing iOS and Windows 10. Can't be serious.