And they do have a normal bar variant of the 13", although that might go away when prices come down.
Lastly, your argument sounds similar to me to the people who vowed they would never give up their physical phone keyboards. I don't think they made much impact on Apple's iPhone sales.
Seems your top priority is preserving what you are comfortable with. My gut feeling is potential for better interfaces no one has even thought of yet for Touch Bar is immense.