Are the people advocating "just drive/ride over it" the ones that end up with squirrels in their spokes?
I learned to avoid road debris. See a shopping bag on the road. Safe? You don't know what is inside of it
Let the trucks grind the stuff up if they wish, but steer the cars around the obstructions.
Know who/what is around you, and look back quickly before doing any avoidance maneuvers.
This has also proved helpful on a bike when cars will occasionally pull out in front of me, and I'm forced to react quickly to keep from ramming them.