Honestly I’m still not sure why they thought that rover would work. The drone went through cause it was era appropriate.The beekeeper was altered down to the rope.
How did they get from that to, nah you can just drill through.
Better off just throwing a rock with a message wrapped around it.
Earlier in the season they broke down the type of radiation the "wall" was made of.
So they were trying to use a vehicle shielded against those types of radiation.
It makes sense in a comic book sort of way.
Fred.