Reminds me of 3D Touch. It could become useful but right now it's a solution to a problem I don't have and most developers can't find a useful way to implement it.
Can’t speak of touchbar but I don’t understand the hate for 3D Touch. I love it and use it a lot. Sure discoverability sucks but I think it’s worth while.
I think discoverability is the main problem. Nobody knows what it can do. I use the quick cursor placement (push and slide when editing text) and fast app switching (push left edge and swipe to middle to switch to previous app) many many times per day. A few games, like Pixel Gun 3d, use it fantastically, since it's actually multi finger 3d touch. It's a first person shooter with standard move with left finger and look with right, with the addition of jump by pushing left and shoot by pushing right.
I have to agree that 3D Touch is a highly desirable feature for me. For example, it allows me to respond to text messages without switching apps. I also use it to preview links before deciding if I want to follow them when web browsing. I expect that over time it will grow in usefulness beyond the current applications. Apple iterates the hell out of features. Remember that there was no copy / paste on the original iPhone.
