Mac Touch Bar is useless. Does anyone actually use it? Would you rather have the touch bar or your escape key back?
(Or maybe it's the other way around, since the former have existed on Mac keyboards since day 1, but the latter has not!)
This is probably for aesthetics as you mention.
I don't own a Touch Bar laptop myself but as someone who has to teach people how to use computers and applications, the Touch Bar bothers me as much as Microsoft Office's Ribbon toolbar, in which functionality somehow becomes even more difficult to memorize because of the seemingly arbitrary decision in how the context buttons are arranged (nevermind how they might change with each software update).
That's strange, I use it every day to get out of modal boxes, dialogs, close panels etc, revert to normal states.