Ghosting is no deterrent though. The game is quite smart at ghosting reckless and dirty players at SR.E. Punts will ghost in time, ramming often goes right through you. The problem is, it also gets abused for overtaking through other cars and most people have found the threshold below which you can ram and punt, at worst you simply ghost through if your attempted hit is too fast.
Simple solution, reset instead of ghost. Same as the reset when you cut a corner too much. That will take the reward out of the risk vs reward calculation. As long as there's still a chance to get away with a dive bomb or simply to enjoy the chaos, they will keep happening. The chance of at most a 5 sec penalty is not enough deterrent, I bet getting reset back before the corner will be.
Chances are people will get smarter and find other ways to cause chaos. There's no one fix. The penalty system needs to keep evolving as people quickly figure out how to exploit it. While the ghosting is better at low SR, it's still not fun when people overtake through you with a reckless dive. They don't get a penalty or anything for having to get ghosted. So there's no risk to trying!
At least in cases like this, please ghost missiles instead of giving me 5 sec penalty for happening to be in its path