Sure I can agree with this (if it's actually viable to do). My reply was mostly to try and explain that the issue wasn't due to a driver update but rather an existing driver failing to work with a new file it was using hence why the last known good configuration feature didn't work.
So all a virus has to do is cause the driver to crash.
If a virus has infiltrated the system to such an extent that it can crash a kernel mode driver then it's already game over.
I really don't think so. Crashing the system is still a long way from controlling the system - no implication there.