Yes, I believe heavy call in tanks should be limited to one presence. Although I saw no problem with this game. 2 Tigers, 2 Elefants and 3 ISU-152s. What bothers me more is that these all happened in 30 minutes. 45 minutes or 1 hour would be better. Pacing in the game is still not as it should be I believe.
There are easily 100000000000 features more important than a useless avatar customizer.
It's not like there are 3 guys working on the game. But on the down side, they are focused only on Western Fronts at the moment. I am not expecting anything big until that time.