This is a ridiculous attempt to make uber fighters in a battle. You have to come up with another rule now that will prohibit capships from moving on a battlefield, to decrease the miss rate of your Supernovas. And then, remove the cap ship's shields. Then their guns. Then, remove cap ships altogether.
Epyon's solution would be wonderful, if it would be possible to implement it. I don't get bothered much if a cap ship chases my fighter. With my LR fighter I have out-stepped a legion of liberty independents in cap ships, when I took them through the Badlands. I was thrusting, they were cruising. I should have reported all of them? I find this silly, and somewhat amusing.
So, no, I don't agree with that rule. It creates confusion, and it can't get any clearer than now, otherwise more rules will appear, and there are lots already. Try to cut down the un-necessary rules, such as this one.