Whilst appreciating your point of view that change always has good and bad points, depending on your perspective, and the need to rationalise user interface to avoid multiple window types, the developers seem to have killed some of the best aspects (such as CARDS IMO). They have made selection/interface options require more keystrokes and resulted in full screen mode that obscures navigation, music, etc. views. On the other hand the turn indicator blind spot display is very welcome, as is the ability to customise the bottom row.
Unfortunately the good stuff seems to end there, or as you say, needs a lot more development. Why can only apps be "parked" on the bottom row and not car controls? Why do we need app selectors for radio, bluetooth, spotify when the music interface was easier to operate is lost on me. Maybe this release is to make things worse so that anything is an improvement is their strategy. I think a major improvement for all would be to include car control functions in the select and park bottom row as everyone has different ideas about what they use most. Heated seats - I use them about twice a year. Fold and unfold mirrors I use every day and sometimes more often so that would one of my favourites along with the wiper function. Also, I personally would like to have sat nav sound on/off as an icon as I turn off sound on a journey until the last few miles when you need to listen to turn to turn whilst concentrating on new roads. It's become more key stroke intensive to do this since V10. And why not allow more icons on the bottom row?
Overall, I think the big flaw in this development approach is an apparent failure to engage with the user base (or more realistically a smallish representative group) that can have the strategic direction explained to them and work together to make life easier for us all. Not everything can be done by twitter.
Oh, and voice control. I live in the UK have a regional accent and find myself and my car not speaking the same language