If you gave any lady at all in loading the environment while at fill speed with a supercharger, it is likely you will ruin into ore and rocks and fences and shipping carts and such because they can appear right in front of you. If you have no issues, that is good for you but I don't enjoy having to drive very carefully around the environmental objects. If it was first person view and loading distant objects was better on my computer, I probably wouldn't have such issues.
Add in the fact that the motorcycle will often spin circles or slide around back and forth if you drive over the terrain just right or you wobble back and forth if your turn slightly (none of which fits my experience riding real dirt bikes) and it can be very easy to hit things. You can't even really do anything to recover from those slides and turns beyond doing and now that doing takes a long time, you are at the mercy of the game.
I could also say that I've never had an issue with the 4x4 getting stuck on terrain unless I drive it into a ditch or try to get through the wasteland without being careful. That doesn't invalidate your own experience.