As a UI Designer, it makes a lot of sense why Tesla made maps persist no matter what. It's in preparation for FSD, where navigation matters a lot more than anything else. You need to see where you're going, you need to see where the car is, and that's the main point of why you're in a car in the first place. I also always disliked having the rear-facing camera on the top half, as it was distracting and disorienting, and not just for me but for many other people that drove my Model X.
Tesla, if you are reading this, don't change. We know you thought long and hard about the UI in V9, and we don't need you to take any steps back — only steps forward. Please focus your attention on perfecting EAP, FSD, and fixing bugs, quality issues, and keep running!
P.S. If you're one of the people that are being overly dramatic "Woe is me, I shouldn't even upgrade to V9 because I can't have my camera on top", either stick to your guns and go post another complaint thread, or tough luck and join the future.