Yes it needs to be nerfed like UKF bombing run, so no one ever use it. (i would agree on cost increase to 200)
UKF bombing run is an excellent comparison, actually. Stuka dive bomb does more damage, much faster, is radically more difficult to dodge and all this for half of air superiority's price. And that's before you count the sound bug which makes it flatly undodgeable.
It was perfectly useful before it was massively ninja buffed. In its present state it is flatly indefensible.