Shows like that are mainly made for the people on the outside, looking in. They aren’t built to be accurate; they are there to reinforce our exaggerated stereotypes. And that’s okay. It’s how it should be.
It's important to remember that no one forced Mozilla's board to do anything. They wisely fired the guy for bringing down a giant negative PR stink on the company. Correcting a costly mistake. The guy never should have made it past the vetting process.