At one of my old employers, they laid off a guy a few days in who moved across the Atlantic for the job. Moved for the job and I doubt he even earned his airfare.
So...
He is simply stunned by the firing of the entire team. Everybody in the entire charging industry is just getting bounces when trying to email their contacts about the hundreds of contracted Supercharger installations in the works. Think about all the external contractors working on maintenance of existing stations, also no way to contact Tesla.
Here is an article claiming that Tesla may be looking to rehire some of the fired team. [1]
Firing the exec who won't listen to the CEO? Sure, that's business. Firing the entire team as some kind of punishment? That's cutting off your nose to spite your face.
[0] https://youtu.be/iVaViiX0xZY
[1] https://www.businessinsider.com/tesla-may-rehire-some-laid-o...
It's certainly not unheard of, but saying it's common is severely overstating it
But it's more common if you zoom out a bit and look at other industries that haven't been consistently booming. I went to university during an O&G downturn, and I had several friends who had accepted internship offers at oil companies which were cancelled at the last minute. There were even companies that suspended their co-op programs for students already working there. Students who had an 8 month internship arranged through the university were laid off in the middle of it and were left sitting on their hands since they weren't enrolled in any classes.
But I probably couldn't find any news articles about it, since those same companies were also going through mass layoffs at the time and nobody really cared about some interns having a rough time.
That has consequences for supervision of interns and would probably incur significant rescheduling and organizational overhead. So I see why something not considered "primary business, contributing to the bottom line" is simply cancelled.
Not great, though.