Wagons and hedgerows

[Bluebell88A]

According to the rules, wagons can pass through hedgerows unlike trucks.

Given the nature of the Normandy bocage, surely a horse drawn wagon would struggle to get through the dense vegetation even if it could get over the raised bank? And it would be even more difficult towing an artillery piece.

Fair enough if Engineers had created a suitable breach beforehand, but then wouldn't the breach be accessible by trucks too?

Tim