Except, they have to be good at both roles to have that secondary role be of any use.
Ironically enough, pretty much all dual role units are soviet units.
They should not excel at that role to not overstep on the specialist units field, but they most certainly should perform up to the cost.
You are entitled to your opinion but pls do not state as a fact.
Not all dual roles units are Soviets, hardly. Ostwind has a dual role of AI and AA.
And they do not, actually they can prove problematic even they are average in both roles if the like the M-42.
(disagreeing with my every post is non constrictive, try giving it rest. Have you decided if the Sherman is the most cost efficient medium yet? )