That's only for the GDI side though (meaning NOD has the advantage), and GDI are unable to do it on the NOD side.
Is there any reason that only NOD are able to take advantage of this? Or was it an accident to begin with? Personally I don't mind if it's kept in, provided the map is fixed to allow GDI this same advantage.
This is a mapbug and will be fixed in the upcomming patch.