Except when I hook up a display and close the shell, I have a monitor to see what I am doing.
If Apple wants to push that "touch bar" experience, they will have to integrate it into a keyboard.
That WILL happen with the next iMac or all other arguments for this input method made are invalid.
PS: Just read a few posts of others who use their MBPs in clamshell mode with a monitor.
Not so uncommon, so we want a mobile computer and if they want us to warm up to touch bar they have to enable everybody to use it, regardless of what type of computer we have.
I am not sure if a keyboard version is feasible, given the cost of the touch bar and the Bluetooth latency. That could also explain why the iMac was delayed. Perhaps Apple needed more time to work out a functional version of the keyboard to bundle with the iMac.