Honestly the metro design language didn’t look particularly attractive for touch screens either. I knew someone with a Nokia Windows Phone, the interface seemed… clunky. Quirky but not in the right ways.
It has to cater to mice and fingers, and so ends up with the lowest common denominator. Can’t have information density because of the butter fingers, can’t have neat swiping gestures because of the mice and especially trackpads. So, big squares and huge buttons, repeat ad nauseum. Like a DUPLO set.
Surely the UI/UX designers and Microsoft knew this, but I guess Ballmer had his way. Meanwhile Valve didn’t have to contend with cranky executives, so they just slapped Big Picture on top of KDE and let use decide when to switch between console mode and desktop mode.
