Some are. Basically the electrics need to be protected against smooth DC leakage at 6mA and an earth fault in the most common type of earthing installation. A Type B RCD would cover the DC leakage and an earth rod(s) or an active O-PEN protection unit covers the earth fault. There are other ways of protecting against these faults, eg a Type A RCD plus a 6mA DC protection unit, but are often even more expensive and/or complicated.
Some charge points have protection devices for these faults built in, possibly using different approaches to the above. Unfortunately it is not always clear what protection each type of charge point offer, but in the case of the Tesla Wall Connector, it needs external protection on both counts.
I have suffered at the hands of Range Rovers in the past - including the only new car I’ve ever rejected...so I very much have my fingers crossed! Have to say though that generally speaking the Tesla problems seem to be more cosmetic than leaving you at the roadside...whereas the build on the RR was great but every journey was an adventure - albeit for the wrong reasons 
