Earlier quoted context omitted.
Framing this as though employees have total freedom and choice wrt employer and working hours is plain incorrect. Those engineers at SpaceX aren't organized, thus they get screwed out of overtime and can't talk about the houra and working conditions they are pressured to labor under.
I'm one of those SpaceX engineers, and I do feel that I have almost complete freedom to get another job at any time if I didn't want to work here or was unhappy about compensation. Your assumptions are wrong. There's no scandal about the working conditions at SpaceX. Me and every SpaceX engineer I know are happy. Move on.
Keep tellin' yourself that