You either kill one pak which is -320mp or you drive your opponent of the field and park a kv1 in their base. that gives you enough time to get a second kv1 and make it very hard for the axis player to field a counter. Add cons, guards and il2 planes to the pushes, probably dealing with a second pak and you have a 20min gg 90% of the time.
I think multiple kv1s can be a problem, atleast in 1v1
20min gg 90% if the time? Hyperbole much?