Linus seems Zen about this whole thing, and it's quite refreshing. He's really is diplomatic about it, and it seems he's looking towards the future and whats coming vs what and who we have now. Younger devs will want newer better languages, Older seasoned vets feel encroached or ignored. That's IT. I'm seeing it now in SAP where there's core SAP, with ABAP and the older modules, the new fancy stuff like HANA and Fiori that's where the splash is. Until everything is replaced, which it never is, the Old Guard will have their place. Some new up-and-comers will eventually have to take it over, but until then they need to play nice.
I like Rust, I think it's a good idea for safe, secure code. It's complex, but everything new usually is. C is a good language, but Linus is right, it's easy to screw up unintentionally.
I with Linus on this and Rust devs, start small, replace fringes. Prove your work. Earn respect, then expand as opportunities arise.
Everyone's work on the Kernel is tremendously respected. You Kernel Devs have my Kudos, always. I think your code is amazing. (even with silly bugs that I'm sure exist). But you won't always be here, you will retire, you will leave the Kernel someday. Your code will eventually be replaced, and your hours on it will disappear. But your intent and ideas will remain. You did 'X' in the Kernel for a reason, your code will be replaced, but you reason for doing 'X' will remain. Eventually even 'X' will change. It's Life.
I can't tell you who invented the wheel, but I liked their idea. and millennia later we still use it.
For now Rust is coming, C is threatened. Natural cycle.
Linus is becoming the Dude, I like it.