Can you reproduce the issue in a controlled situation so that you rule out that it is just a FAW-using sci captain with sensor scan and very high detection range or something else that is not FAW related?
I did some (quite limited) testing in a 1v1+photonics and could not reproduce the issue.
FAW pretty much already does that right now, because as of today Fark acknowledged they are still working on the decloaking ship problem.
the difference is it would have a duration of 1, not 10 and would deal basically no damage to anyone, and maybe it should not hit spam at all. FAW is a damage dealing skill that has great spam killing abilities, and is pretty nice when theirs just 1 target around too.
FAW is a spam clearing skill that has (had?) the potential to deal incredible damage. It most certainly should be able to hit spam but shouldn't be so out of wack against a single target. I love the cone attack idea though.