"Brown asked for a pay rise. Musk told her to go on a two week vacation, during which he would do her job to assess whether her request was justified. On her return, Musk decided it wasn't. “Twelve years is a good run for any job,” Musk tells Vance, coldly."
That really sucks for Brown, but if Musk really could do her job and continues to do so, then firing her was justified. Now, if Musk told her that and then turned around and hired someone else to do that same job, then that is all sorts of f**ked up.