When a crash is occurring in a Class A MH, you need to lift up your feet to let the crash happen below you, and then duck because the microwave is coming forward. Timing is everything.
It's a bit of joke, but I don't expect my chances of surviving a serious MH accident are very likely. Winnebago suggests that there is a reinforced frame around the dashboard, but it's chance of reducing injury is pure fantasy. I think that my Class C had more survivability, as would probably any other type of vehicle.
Drive safe.