It's nice to see some ideas being played with but I think there are two issues with that image. 1. The Esc key isn't butted against the edge of the touch bar.

It's nice to see some ideas being played with but I think there are two issues with that image. 1. The Esc key isn't butted against the edge of the touch bar. Because it's not always in the same place means it's hard to press without looking down. 2. The same is true for the run tests shortcuts. I'll miss the f keys less than Esc but things like test shortcuts, I find, are best committed to muscle memory.