In that video he did everything that everyone recommends not to do when trying out Linux:
- Never copy paste and execute random code from the internet.
- Never execute commands on the terminal you don't fully understand what they do.
- Never say yes or okay to any dialog prompt unless you understand what the dialog is asking about.
He is stupid, he paid the stupid tax. Linux didn't do any of the things that went wrong in that video, it was his own stubbornness and ignorance.