I don't see the dislike for it.
1) You can't really make it part of your muscle-memory workflow if you use an external keyboard more than a very small percentage of the time, rendering it nearly useless for lots of people, right out of the gate.
2) Some of us discovered we barely brush the Touch Bar (F-key) area while typing certain keys (numbers, for me, which means also all the symbols that are on the number keys). This meant we had to all-but disable the damn thing to keep it from opening iTunes and doing other crap, apparently "at random" but actually because our fingers were straying 0.01mm onto the Touch Bar without our realizing it. Result, a fair percentage of users had to force like 3/4 of the bar to be empty all the time, or else face constant irritation when using the built-in keyboard.
2) I get it but comparing to desktop keyboard F-keys are dead without Fn-key so unlike Touch Bar mbp f-keys are not on par with desktop keyboard.
Looking down at the touchbar each time to assess what the current interface is adds a tiny amount of additional overhead to my interactions that I dislike. It's not _terrible_, but it's not my preference.
I also really dislike the lack of tactile feedback.