I don’t know if it’s complete devotion, but Linus has a reputation he’s earned the difficult/hard way.
If he says something, people should take it seriously and consider his words. That’s not to say he’s right all the time, but you’d better have a damn good reason for disagreeing with him.
Also a reply so you can understand a bit how things typically work in FOSS projects.
There’s a democracy in healthy ones, but ultimately, there has to be someone at the top that has the final say. The project maintainer/main contributor. Someone who gets to be the tie breaker, or absolutely final authority on what does or doesn’t make it into a patch/version/etc.
This is extremely common, and generally healthy, in these kinds of ecosystems.