Because the UI (in 2012 R2) is spastic and inconsistent. The different UI elements involved with say... creating and connecting to a VPN is stupid. Starting at a normal desktop UI, you get the Start Screen, then you manually type "control panel" because it may or may not be visible, then go to Network and Whatever Else, then you click to add a network connection and go through the normal UI to add the VPN. Then you have to actually open network adapters to see the connection you just added. Then when you double-click on the VPN's icon, a moronic blue bar (part of the charms idiocy) comes up on the entire right side of the screen, showing you your connections, and you get to click on your VPN connection AGAIN to select it, then you get a connect button that you an click, and finally feed in credentials. The blue bar vanishes. Because... reasons.
Look, we get it. Microsoft things it's a tablet with a touch interface. It's not. It's a server. With - most likely - an RDP, VNC, or out-of-band interface. But no.
Having to memorize and use Powershell syntax to launch a VPN is stupid, especially when the previous Server 2008 UI was usable.