I certainly don't have the information to make any kind of factual statement about my last comment, "How much can the perception of bad service help to influence this case?". But it can be taken two ways. The way you noted and the other by Tesla that they are being hamstrung by the states so they can't offer quality service.
The problem is it is hard make the dealership model work for EVs...
For example a $40,000 ICE may easily have $10,000 worth of servicing work over a 10 year period, a lot of that is parts a labour...
The car makers has good margins on parts, and the dealer has good margins on labour.
In turn this means the dealer makes less margin, on selling cars and a bit less on warranty work.
A $40,000 EV may only have $2,000 worth of servicing work over a 10 year period.
Warranty cost are higher for new models and that affects all EVs...
Parts are typically only need for smash repairs or warranty repairs.... there are no parts in a EV that need replacing on a regular schedule, except tires...
Take that $8,000 of extra servicing out of the equation, the dealer has to make it up somewhere...
For Tesla at present the bulk of the work is warranty repairs, the best solution is to improve build quality and lower the rate of warranty repairs.. If they can nail that, all aspects will improve... the best service is no service.