@mattbarnes While looking at the map as drawn in TWW it can very much look as though the proximity of Northern Germany to the Danish Islands is roughly equidistant to that of Mainland Denmark or Sweden. However in reality the choke points created by the straits (between Denmark & Sweden) are far more restricting than that of sailing off the Northern German coast. since one can hug (metaphorically speaking) the German coast and stay close to 20 - 40 km away from any part of what would be considered part of the Danish Islands.
Furthermore, since the mechanic is really meant to embody the ability of being able to block movement through the strait via a defensible area that would offer the ability to mine or torpedo any navigable parts of the straits... This part of the Baltic would not be considered part of that.