Wouldn't count on that. I'm pretty sure for using the touchbar you have to look down and aim while you press the thing which takes some time. Compared to that you most likely already blindly can grab your mouse or find the touchpad and move the cursor in the fraction of a second.

With a mouse? Maybe. With a touch pad? I know I'll be faster with the bar.

Maybe, but if you're asking about speed, the correct benchmark is against a keyboard shortcut.