In fact, I've seen a brand new Model 3 last year... The amount of manufacturing defects and design issues its owner found in the first week would be unthinkable for a Skoda Fabia. If Tesla wasn't leap and bounds ahead on the drivetrain (including batteries), they'd be on their way out.
I'd sy 80-90% are fine, but 1 in 10 or the gaps are so bad you can see the asymmetric gaps from 30+ ft away, most often Model Ys anecdotally. I even see what looks like added seals around sides of the rear hatch sometimes.
Really... this seems like a study designed to get clicks and not make real predictions. An actual result with units saying something like "16% of vehicles surveyed lost more than 1 day of utility due to maintenance problems in their first year" would be really interesting. No one has that, alas. So we all end up arguing about bad science.
(My car is just great, FWIW.)
An old Model X has issues. Big whoop. They shipped a handful compared what they are now shipping.