I dont think he has a historical interest in the Siegfried Line, he wants this map because it is a remake of a BF2142 map and he has an irrational aversion towards assymetrical maps.
I had a look at the map itself and while it is a well and professionally made map (as is to be expected from DICE), it is not in any way special. In fact, there are some things that are counter to usual FH2 map design, like the amount of flags in a conquest setup, which would certainly lead to the kind of "ring around the rosey" gameplay people hate. The map is also very scaled, which doesn't fit graphically with most of the newer FH2 maps, although that is a minor point.
All in all I simply don't see a reason to spend any time or effort on it.