Wtf are you even talking about?
Literally all of the points you mention completely miss the point. And even these examples are not even consistent. Osttruppen were used because they trade very well (cost efficiency), especially vs Brits and cheaply tie up a lot of enemy map presence. StugE not being used is a slight balance problem, but it being doctrinal does not mean that it needs better stats than the Brummbar. THAT was the point I made. And I have no idea why you start talking about stock units with the KT and the T34/76.
Now please respond to the points I actually made instead of making up something I never said. or don't respond at all, fine by me as well.
Your point what I understood was the viability of a doc option.(correct me if i'm wrong)
ok how do I rephrase this. Your right, in an Ideal world doc units don't have to be stronger than non doc ones. But viability of an unit depends on it's stats, time window, cost-efficiency and the mechanics of the game. The game has an army budget which favors more powerful over cost efficient stuff. The way the game works it pretty god damn hard to make a doc option both not stronger and viable at same time.
bout the ostruppen. Ost-truppen in the long run are not more cost efficient then grens at all. They are useble(i'm talking pre patch here) enough so wehr player can quickly out tech others(which is what they really want)
The whole KT, t34 thing it's just me trying to explain the game game is really favours super units.