It's interesting to think of an insubordinate dev being tasked to write some horrible locked-down system in Rust and going, "yeah, this thing has to be in an unsafe block because xyz, oh, woops, I guess I introduced a jailbreak opportunity".
Agreed... I'm quite worried about unsafe code in libraries that I'd use.
Not that jailbreaks aren't a good thing, because I'd hate to be forced to use a locked (aka dumb) device.