Imo, future customers are only qualified after they have take delivery and lived with their cars for a while.
I do think you need to be able to talk from personal experience and not only from reading about it, to qualify to promote and sell a Tesla. This is the best way to prevent misconceptions from being presented as facts. If people are dependent on "selling" x-numbers of Tesla's to be able to get their own, then any potential issue might be downplayed or dismissed completely. We who have lived with the car for a few years know that there are issues, both with the car (most on them minor) and with service which often take a long time.. But in the end the car is so nice a drive and experience as a whole, that these issues feel trivial.. but it is important imo to be able to give a potential buyer all the facts - and not a summary of what others think or have experienced. If you haven't lived with the car yourself, then all you can tell others is what you assume it is like, based on what you can read.. and you know what they say about assuming stuff?
(at least in my line of work, ATC)