That tablet interface also made it to the server version - which probably had the worst windows interface ever.
So the homepage doesn't even load.
So the hapless admin who needs to download a file off the web (with no other browsers installed, and no firewall) would open IE and boom, exploit!
Is this what you're referring to?
More importantly people who suffer from to those interfaces are not in position of power to make switch operating systems. Forcing them to eat what MS feeds them seems like good way to experiment. If experiment fails, you don't have to hurry and repair it.
The default homepage for it should be msdn or bing or whatever, but msn makes zero sense.
Weak!