There were four problems with their decision:

1. They chose the most expensive car to fix, and that it can't be fixed in independent shops. So, a small dent after a parking where everyone else says "well anyway the insurance pays for it" becomes a $3000 expense

2. They gave those expensive cars in lease to Uber drivers, meaning instead of having $100 of profit a day, they get a tenth of that, plus they get back a car with thousands and thousands of miles. And those drivers when they get a small dent after a parking they say "well anyway the full cover insurance (Hertz) pays for it"

3. They gave those cars with a new charging infrastructure to people with no experience at all, which is a shock for someone new. A bit of training is required

4. They purchased those expensive cars at full MSRP which IMHO is insane because any other automaker CEO would have done everything (=steep discounts) in order to sign such a deal