You have no more controll of a tank while gunning than you do with a plane. You can turn the tank in either direction and speed up/slow down. You can do all this in a plane, AND you can turn on WEP while gunning too.
Like I said, no difference at all between the LOGIC. None, zero, zip. Some would just use it more than others, and thats true even between the planes you've listed.
If one is harmful to gameplay, and there is no difference in reasoning behind the two, why is the other OK?