So you're still waiting for Cannon Lake?
In FCPX you don't type much. You move stuff around, and for that I could really learn to love the Touch Bar. Final Cut Pro and Logic is the last pro applications from Apple, but does it make sense to dedicate a $2500+ machine for those two apps? Bundling a dedicated touch pad with a screen would be better solution, and open the usage for a wider audience right from the start.
I agree on many of your positive views on the new machine, and I can follow your observation that the display was great. The screen has a dense colour depth. The speakers were amazing for their size and on medium the volume only had a slight of distortion. The keyboard is better, and the butterfly mechanism feels more mature than on the MacBook 12. The operation temperature was better and the noise level from the fans were better than the 2015 with dGPU. Returned one as well of those in late 2015 because of constant fan noise when plugged into an external monitor.
Most of my issues surface when I'm typing. For text, coding, research, spreadsheets and light Photoshop I don't see the TB emerge as a time saver. My history of mishaps with the touch bar in those use cases has reset my workflow more often than not. I liked it as an experiment for the first week or two, then I started to use the computer in production and the accidental hit here and there just made me more concerned about not hitting the touch bar than actual using it or ever worse, taking the focus of my work. I feel that many in the same field as me share similar experiences. I feel the idea about hooking up an iPad to scroll through footage and use as a touch bar when connected to a Mac is a better and more universal idea. If you have the Pro, you can also use the pen for more delicate operations.
My struggle is that at the moment I am just using Apple hardware from 2015. I really can't pull the trigger and buy something from their lineup at the moment. The Mac Pro is the only updated computer if you eliminate the MacBook Pro from the lineup, and that is just a spec bump on a design that is getting trashed at the moment we speak. It is hard to choose, and for each month Apple gives me and other potential buyers the time to look for alternatives, it becomes easier to go for Hackintosh with a 1080 GTX TI, since it is the only powerful graphic solution for macOS today, with Nvidia releasing Pascal drivers this month. It is at least more interesting than just standing around waiting for the signal light in the buyers guide to go green.