I don't think so. Everyone can have some form of AT out on the field. And both HT's have some pretty serious disadvantages. The American one can only shoot from the rear/sides, which makes it super vulnerable to getting hit in the ass and taking extra damage. The OKW one has to set up to fire, and can usually be scouted due to the nature of OKW building placement. (The repair feature encourages people to place it somewhere outside their default HQ)
You don't take extra damage from rear shots. It is that the armour is lower on the rear. With tanks this is important for deflection but with this halftrack it honestly doesnt matter much. Any meaningful AT will always penetrate a halftrack. It is true that small arms has a higher chance to penetrate but if you see how fast it suppresses units you dont take much small arms damage anyway.