I use the magic trackpad, that feels more natural that touching the screen. 95% of the time my laptop is docker to a USB-C monitor, so having a touchscreen would be a little weird. For professional use, I'd guess that most people have a larger monitor hooked up anyway. For a touchscreen to make sense, my monitor would need to be touch as well.
The issue with the Touch Bar is the same, that's not a professional feature, or even particular useful. Apple knows this, because you can't buy a magic keyboard with the Touch Bar. If it was useful, the Touch Bar would also appear on the those and it doesn't. I'd love to know how many MacBook Pros are sold with and without the Touch Bar.