I'd have to agree with you here.
The skills or the hit percentage among a lot of AT teams often seems to reach ridicolous heights. In particular I dislike the fact that while an entire infantry platoon has been shot to pinned, the AT team in that platoon still advances, and remains as good as undetected! I'd like to see some more AI teamwork!
Still, you are able to do the same to the enemy, and it should perhaps only be realistic that your enemy's a sneaky bastard. God knows how many APCs I've lost to sneaky commies.