99.99% of drivers can't be trusted to drive on grass at speed. I don't care how much attention they're paying. It's very easy to lose traction and control on a surface like grass. Frequently drivers lose control on pavement! You can be doing everything well and still end up sliding out. Unless this is a rally driver or something then no, this is not good.

Again, accidents are not on purpose. They just happen. We should be doing everything we can to keep drivers in conditions where accidents are less likely. Driving at speed on grass next to a large group of bikers that don't have the protection of a vehicle is not that. If you can't understand that then you're a lost cause and you probably shouldn't be allowed behind the wheel of a vehicle.