As much as I like G43s, G43s existed for the Panzer Elite in CoH1, which means that any sort of powerful, long range G43 is never going to make it to CoH2 due to its association with its predecessor.
I mean, considering the track record.
That is an utter bs.
It doesn't matter in the slightest how unit performed in coh1.
Look at KT, StuG, Puma, Grenadiers, Panzer grenadiers, mortars, P4s(MGs) Panthers(MGs), 251, 250, 221, 222, Sherman(all of them), M5 transport, flamers, bunkers and a whole plethora of other stuff that have just a name in common with coh1 counterparts.