From that article, I got a very different impression (despite its clearly negative tone). The quote that really stood out to me was
"How long does it take to build such a factory? From that other car company, you may have heard that car factories could be brought from no plans to mass production in two years, no time at all, or whatever is less. I ask Mr. Demeunyck how long the Luqiao plant took from start to finish, and he proudly tells me that it “took only five years. They do things fast in China”... "In Europe, or in other places with tight permitting, it would take a few years longer,” Demeunyck says. If anyone tells you he has picked no location, and secured no permits, but wants to have a new car plant up and running in two years, call an ambulance."
Apparently, what they are really arguing is not that Tesla is bad at production, but that Tesla is trying to do something nearly impossible. In this light, the problems Tesla faces are not because they lack the skills or expertise to deliver, but problems that any other car company would face if they were to do things on the schedule Tesla is trying to achieve.
Thus, Tesla is really just taking a huge gamble -- they have a chance to pull off something very impressive, even if they fall 6 months or a year behind schedule. And if they fail, they failed because they took on a challenge that was simply too hard for any company to achieve. To me, it really resembles the gamble that SpaceX took, which paid off very well in the long run. So while I think there's a real chance that Tesla will fail like all of their detractors believe, I think there is also a real chance that they will be wildly successful.