In my opinion the most damning sentence in the article is this:
This was the day of first bitter truth of Tesla: even you have a new car covered
by warranty, you will need to wait in line for a few days to get it checked up.
This says one of two things to me, both of them bad. Either there are so many Teslas with issues that the technicians are constantly booked up days in advance, or Tesla doesn't care about providing even adequate customer service for customers with serious issues like this. In reality, I'll bet that both are at least somewhat true.
I get that not every car that rolls off the production line can be perfect (though I suspect that Tesla's defect/lemon rate is a lot higher than most other manufacturers), but at least the other established manufacturers have a network in place to remedy issues like this when they arrive, and to minimize the negative impact to the customer.