LOL!
Who thinks of concepts like these? No concept of usability (try writing on that giant touch screen without hitting the keys).
Yeah I thought the same when watching it. The screen looks nice tho.
RE: Touch Bar - I modified mine with BetterTouchTool so its only purpose is currently monitoring and showing information.
For example I gather statistics from within an Apple Script which is calling a Webservice and returns information which I then show on the Touch Bar and for this purpose I really love it. You can also just show upcoming events from your calendar or fetch the number of plays of a youTube video etc. Apple should really integrate a more sophisticated solution within MacOS to customize it.
edit: and I recommend the tool "Haptic Touch Bar" which triggers a click on the trackpad whenever you touch a Touch Bar button - it really does wonders in my opinion.
https://www.haptictouchbar.com