...which was Val's point. If you want to split hairs, I think she meant, "From the point of view of a web server, a *hung* system and a system with no network access due to a safely sandboxed but crashed network driver are practically identical."
If a crashed system magically reboots, consider yourself very lucky. The majority of crashers that I've seen result in zombies computers unable to, say, read from its disk array. Until the watchdog steps in, of course, but a watchdogs work just fine for sandboxed systems too. Automatically-rebooting crashes are so 1990s.
I don't think the two situations are quite as different as you imply.
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