They my go to to quickly triage a problem being caused by SEL or not.

Not quite. But sorta, yeah.

Learning to “not fuck with it” or ways to do so and rollback are valid lessons themselves.

Being able to segregate “production” and “development” environments is very valuable.

100%

The alternative being variations on:

Hi my name is [redacted], I have [X] years experience.

Please run sfc /scannow.

You can find more help at [Irrelevant KB URL].

Please rank me 5 stars.

Ticket closed

Theoretically one could also prohibit rebooting.

IIRC kexec is pivot_root but for the kernel.

Yep.

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