I tend to rest my left hand on the keyboard while reading, etc. Sometimes my fingers move up to the touch bar and that causes some sort of action I didn't intend. That's very annoying. All the other buttons on the keyboard act buttons you have to press.

The top of the keyboard is literally the worst location I can think there to be a short, long touchscreen.

Maybe it's not a problem for people with tiny hands but I'm bordering on, "palm a basketball" size.