Me too this update caused me to KP too. I booted to my maintenance partition , and re-instaled the old verstion to my main drive using pacifist.
Its now switched back to the built in os x driver and all is ok.
If i try a newer version i'll try the kernel options to disable web driver next time, but i wasn't aware of them.
Interesting you used Pacifist. I found with Clover's maintenance EFI partition, and a Time Capsule Backup, it restored perfectly without having to use any third party software. With all the guts in the EFI partition, I never knew how easy it could be to restore a backup as no system update goes near your EFI!