Personally I feel it's completely understandable. Microsoft has huge market power. It's hard to abandon software you are locked in.
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.
How many people actually care about a default homepage in IE in Windows Server? And is it worth the time and effort to make that setting dependent on the SKU?
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.