I can't argue against the general purpose utility of a touchscreen, but I find touchscreens and the software we have built for them to be really cumbersome. For one, buttons on a calculator won't move on me at uncertain points during interaction! Doing things on smartphones is rarely succinct either as you illustrated.

But I also find excuses to put switches and dials on things and am the kind of person to think screen based aircraft cockpits are a regression.