I have also learned to find the keyboard backlight brightness keys in pitch darkness.
I just didn't want to seem overly hyperbolic in my original post :)
I've remapped Caps Lock to Control and that's working out better.
Of course, I've mapped ctrl to the caps lock key, so...
https://en.wikipedia.org/wiki/ADM-3A#/media/File:KB_Terminal...
You can not only see why Esc was easy to hit, but also the arrow keys (and, in common with other terminals of the time, why "home" is "~")
Sadly doesn't support Sierra properly yet.
On X11, https://github.com/alols/xcape just run `xcape -t 350 -e 'Control_L=Escape'`
On Windows, AutoHotkey: https://github.com/myfreeweb/dotfiles/blob/32c9cfd8d5e0a3a2c...
But yeah. If ^[ or caps lock mapping is not an option, and your workflow requires a lot of escape presses, it could be annoying to have to look down to hit it.
Honestly the Esc key is indispensible.
I've always used cmd+~ for that
Also, this looks to me like yet another not-particularly-useful tentpole 'feature' when I really wish they would spend some quality time fixing abundant os and finder bugs.