My guess is that if some distribution region is without new produce to sell because some other part of the company has fucked up the logistics, QUESTIONS ARE ASKED IN UPPER CASE VERY QUICKLY, whereas if it runs out of some sort of spare parts, questions get asked in lower case.
It just seemed like the original commenter had planned ahead for many multi-month part shipments. Pragmatic perhaps but I would have to question my vendor!
I drive late model grey imports so my parts wait is just the time it takes to pull it off a wreck and ship it. I suspect the wait comes from the dealer/manufacturer relationship.
I'm not disparaging Tesla quality but have you ever heard of Murphy's Law? What can go wrong will go wrong.
Right now I am without a working heater, waiting for two weeks on a blenderator motor for a Ford Explorer. Stuff happens...