I read something similar and then went and bought Hertz shares since the price has slowly been rising recently.
Avis weirdly seems to be the cheapest option for a car rental booking in advance.
Checking uber prices there and it's not as cheap as I was expecting but still cheaper than getting a car, especially by the time you add on parking at the parks and hotel. My original plan was to stay at Cabana Bay for the duration since I can get free parking and hoped to get annual passes for the free parking but I can't see them returning any time soon.
I don't mind the reservation system, Disney have basically been forcing you to do something similar with dining and FP reservations for years, so it's nothing new but I have always like a bit of flexibility and if the parks are still at limited capacity, I can see some issues.