One more on top of others. Many people felt it was a solution in search of a problem. As in, there was no problem i had that it solved. And it was forced on us, in place of something useful. From the start i read that as: This wont be here in a couple years. Which then made it annoying to deal with in the meantime (the hate).

Things that stick around, are generally value adding across a large or complete subset of their users. Touch bar was always niche, and thus always doomed. I think a good counter comparison is Apple VR headsets. For me, i have no use and little interest. But i can see them as a hedge at the very least, or as an enthusiast entrant into an emerging market, where future products in that segment may become interesting. And on top, it doesnt impact me - i can ignore their existence until it becomes useful.

If touch bar were launched like VR, i suspect it would have gotten similar level of dismisals, but less hate.