They separate out minivans from large vans and both types of vans are still some of the safest vehicles.
You could also ignore vans entirely and look at compact cars (the worst of the passenger vehicles) and it's still a bad look for motorcycles.
I don't know that driver quality really matters here.
If you're hit by an SUV or a truck (which is what most americans buy) when you're on a motorcycle it's going to be a worse time than if you're in a vehicle with airbags and crumple zones.
You could also ignore vans entirely and look at compact cars (the worst of the passenger vehicles) and it's still a bad look for motorcycles.
I don't know that driver quality really matters here. If you're hit by an SUV or a truck (which is what most americans buy) when you're on a motorcycle it's going to be a worse time than if you're in a vehicle with airbags and crumple zones.