The problem of the Touch Bar is that people didn't know how to use it and tried to give it functions that it is bad for. It's not a wheel, and it's horrible for settings like ISO or exposure compensation where you need feedback like clicks. What it's good for is gestures. Not many people are used to having that on their camera so were slow to adopt it and I was similar. I primarily shoot architecture with tilt shift lenses hand held! Tap left it toggles the level, tap right it toggles the histogram, swipe right it zooms in, swipe left it zooms out.
Now that I'm used to it I hope they put it on every camera they make.