Is it just me, or is stunball off the charts? Options

[Ddays]

So you roll sorcery + magic to deal force damage, ok.

But the drain is a mere F/2 + 1. A combat mage can pretty much end fights immediately with a force 12 stunball everytime. The drain is only that of a force 4 fireball. That's insane. Especially potent since it's no more difficult to land the force 12 stunball than a force 6 stunball, there's no reason to not go for the quick kill everytime.

Ok, sure, I can have every single fight draft a small squad of drones to defend against the stunballer, but where does that leave gangers? Instantly dead the moment they face a magic 6 caster? I basically can't have a magic using big bad cause the moment they show up, the PCs are either screwed because counterspelling failed once or they win without problems.

Maybe magic itself is broken, but I'm finding it harder and harder to keep the other characters into the game. Everytime is so fragmented, I can challenge the players individually, but as a group it seems they take turns rolling. Basically, a session goes: Matrix dude does his stuff, rolls independently of everybody else. Combat starts, mage goes off, wins. Combat starts, mage goes off, wins. Combat starts, mage sits out, Cybersammie wins. Matrix dude does his stuff, everybody else goes to grab a snack and waits for the result.

Is there no way to get all the characters fighting on the same front at the same time?