I agree with Mr. Someguy. The pursuit of novelty is dangerous. I think iconic / core Wehr units should make the grade, even if only as call-ins.
It's like saying the MG42 should be left out because we already have it in the Ostheer, despite it being a core / pivotal unit that appeared across all theatres.
Well, if we consider the fact that MG42 WAS left out when PE came in... as well as long barreled P4, as well as PaK AT guns as well as... ect ect.
Thing is, you can't have many similarities and keep the unique feel, so I wouldn't be surprised if OKW suddenly forgot to give MG42s to their infantry or even use P4 and StuGs at all.