@Tom-Grzelinski, I have seen most of the issues you encountered also. Great write-up! Most issues are already being worked on.
Concerning the closures, I make it a habit to leave Seasonal closures off, and to disable traffic aware routing in the settings. For scenic routes you don't really need that..
The "route violations" are also a setting that you can disable, but I agree it cab obscure too much of the screen.
Why do we have to confirm that we want to stop navigation?
Handling the menu with motorbike gloves on, a press by mistake is easily made. I think the confirmation is helpful and should stay (come on, it is ONE extra tap! ).
if you press on the waypoint icon it gives you the option to skip this waypoint. Could this present more options, such as switching on/off automatically skipping waypoints?
I think that is much too inviting for getting you distracted from traffic. Changing settings is done through the menu standing still. Skipping a waypoint you missed can safely be done because it is made really easily accessible and non-distracting.