These might have been some of those that wanted to continue to work at home, Elon told them to go pretend to work someplace else.
Even if that were the case - and from what I’ve seen they were reacting to his comment about voting Republican for the first time for Mayra Flores - a demand that they work from home is consistent with the entitled behavior of that generation. But, again, the stories I’ve seen stated it was the public announcement of the Flores vote.