Might it not be the case, though, quite legitimately, that Waffen SS units might be part of the spearhead of any offensive? They were after all always in the front line wherever the fighting was thickest. It would be quite legitimate to have them in an authentic scenario.
One thing that does seem frankly silly to me, concerning this general subject, is the way that people are so anxious to emphasise "We insist they no Nazi insignia is displayed", or something to that effect. Does that mean that the swastika in the eagle insignia on uniforms has to be carefully removed? That no authentic 1933-45 era German flags can be displayed? All that is airbrushing history, surely.