The Windows 8 equivalent server edition also included the upgrade to Metro UI. I don't know, I guess MS figured IT wanted to provision Windows services using a surface tablet?
I actually really did like Windows Phones though. I can imagine a world with a third competitor in that space today... But MS didn't seem to have any understanding or ability to develop an ecosystem that works. Even when they were literally paying people to write apps for their app store, it was just terrible.