When I was a newbie some of my first distros were RPM based, and there was no yum or anything like that. I just downloaded weird RPMs and installed them with --force, and more often than not it worked fine. After switching to Debian I quickly learned that when installing stuff there, you don't try to force DPKG into doing anything. But first I had to fuck up libc, and also learn what libc was. If you're used to ignoring all sorts of warnings from your previous janky OS, it's not that far fetched to fuck up your Debian despite the warnings.

That, and of course they're going to ignore the warning and make it blow up, they need some drama for their video! Most of their content follows the formula of first fucking it up, and then trying to fix it after. For their target demographic that is the optimal choice: It's relatable for the viewers, who also fuck up their system all the time, and also impressive because he sometimes manages to recover! His viewers would never be able to get out of that mess, clearly Linus is a tech GOD!