The point I'm saying is, were Soviets' late-game intended to be built around their call-ins, there would not be commanders for them without late-game call-ins. If it were such a simplistic design rule, the large amount of commanders contrary to that would definitely have not happened.
What a lot of people forget, or possibly never considered, is that some Commanders were also intended for use in TOW, and originally you were hardwired into using a limited selection.
Now it is very hard to design a Commander that works in 1941 TOW and is also useful in 1944-5 MP.
That is why the Soviet Common Commanders include 2 that are good in MP (in fact the two best) and 4 of the ones that are vanishingly rare.
There is a similar issue with Ost.
Now, Relic have never come out and said this, but it should be quite clear if you consider it for a moment.