I like the idea of it.
I don't like the placement of it. Seems wrong. That info should be closer to the trackpad to make it more easily accessible.
It should be a natural move from trackpad to touchbar to perform certain actions. It should be as natural as a right click..
But I'm pretty sure they didn't want to fugly the clean look.
I think it's more about not hitting the touch bar accidentally if it were too close (above) the trackpad.