As a comparison data point - I have a 2013 Scuion/Toyota/Subaru that has 95k and has had no issues. I also have a big diesel F250 that bias 50k and also, no issues whatsoever so far (knock on wood). Before that inhad an F150 and put 220k on it before any issues arose, had a civic that was similar.
Not sure these are apples to apples comparisons. Model S, 3, X and Y are not only a new platform, but an entirely new category of vehicles, made by a company that has started from zero and has been scaling volume production aggressively. Building a thing well that has been produced in volume for more than a hundred years, by lots of companies, with an entire ecosystem of established suppliers, is quite another story.
They are. My Scion was an entirely new platform as well, I did what you weren't supposed to do, buy one of the first 10k cars produced. It was a totally new drive train, engine, and platform at the time. I would argue that by the time the X came out it was no longer a new class of vehicle, many evs had been out for years prior to thr Xs release.
That's pretty low, even a poorly built Subaru will still be on its first head gasket, meanwhile a Fiat 500e will be above 85% battery health at 70k miles.