There's no smug sense of superiority. While we are a Linux shop primarily, we always admired BSD jails until Linux had proper containers, and installed BSD systems where we needed strong borders or boxes.

Also, we need to accept that some of the "new" problems we face are already solved well decades ago, and many people are rediscovering these solutions...

...after yelling to the very same people who were kindly pointing the right direction for being old-school, backwards and luddite minded.