As a user since PA, I agree that while the overall learning curve was steep to skylight, the "common" or "main" operations are pretty easy to master and did not take all that long to become ingrained.
I certainly feel the errant key press pain. I almost never use the console views since I mix out of the box but I find accidental key presses opening it constantly and while it is easy enough to close, it destroys workflow when it also changes where the multidock is or in an ffort to get back where you were, you accidentally close everything else you had open.
It is the more esoteric and deeper functions like the midi effects and those dang take lanes that are the real learning curve. I guess take lanes are a useful tool for some but I am so fast with just comping the old fashioned way that to me it is only an unnecessary thing that while I can shut it off, I don't always remember to and so again, workflow frustrations. My templates for new stuff seem to give me no issues as I have set it all the way I like it, but working on pre-update projects, (especially pre take-lane projects) just get under my skin when I have to remember to reset everything to the state I like it before I can work effeciently.
Still, software evolves and to get increased power and quality, we adapt. I'd love the same power and functionality of the new version in the 8.5 interface as I worked with it so long, but I am learning the Skylight almost as well so I am sure a major overhaul and new interface to learn must surely be on the way.
I'm currently trying to learn z3ta+2 and Rapture Pro in a power user fashion and it is just a muddy mess in my brain. The matrix is powerful but you can create brain spaghetti in an hurry.