shocks can be just as defensive though, especially on close quarters areas, it can be almost impossible for infantry to take points if there are shocks hiding behind shot blockers.
I guess that in your opinion assault grenadier fit Ostheer "Defensive Doctrine" and shock troops the Soviet "Defensive Tactics" for the same reason, although I respect your opinion I happen to have another.
Shock troops in real life and through out history are by definition offensive oriented units yet I am pretty sure that in occasion they found themselves defending positions and probably very effectively since they where elite troops.
The real issues with shock troops in "urban defense" are not the names. I have explained them in feedback thread.