We are talking about couple of different things here:
1. Assault on a subordinate from a superior within a company. An inexcusable act that got its well deserved summary in the dismissal of the guilty party.
2. End of the most entertaining car show that I have ever seen.
The two things are obviously interdependent but saying that point one was done properly doesn't mean that I cannot be sad that point two happened also. In regards to how "fake" the show was or not - who cares. We enjoy Star Wars, Star Trek and loads of other things that are not real and are out of our reach.
Here I at least got to see how pretty much any supercar, that I will never drive, behaves and looks. I also got to see loads of insane races that were all shot with spectacular camera shots and had fairly weird concept ideas. I doubt I will see anything like it again.