My opinion doesn't represent everyone's of course, but I don't like touching my desktop/laptop screen and getting smudges everywhere. I'm quite happy with a keyboard and a (good) trackpad.

Apple said the touchbar is their first foray into a new system of inputs, perhaps a larger touchbar and some sort of haptic feedback is a new interface their going down, I think that could actually be pretty cool and innovative.

As for putting a touch screen on everything and desktops, eh... I mean, that Surface Studio looks amazing and likely appeals to creative professionals, but probably doesn't effect many people besides that. Kudos to them for the innovation, but I don't think it represents a better ecosystem.