Then you understand wrong.
There is a plan, sure, but that plan is just a largely broad plan of "In 10 minutes you should move into this area" without actually specifying what route they should take.
So in a normal CMBN scenario with the normal Bocage, they would have to move around the bocage or through the small openings.
On this bocage, they would simply go for the fastest way there and since it would consider the bocage "woods" it would move straight through it instead of around it.