It's not the same. If you're used to typing without looking at your keyboard, a fake key on the touchbar does not compare to an actual key where you can feel without looking that your finger is in the right place, and can know by the key travel that you've actually pressed it.
It's pretty much the same as the difference between a car where the air conditioner and radio knobs are a touch screen vs. being real knobs that you can safely adjust while driving.