Well, first and most obviously, I suspect the teen that's being sued probably does not consider this recourse "reasonable", so "all parties involved" is probably untrue.

But mostly, two armed men terrorized a 19 year old and are now attempting to sue this 19 year old for the meany-mean things that 19 year old said while being terrorized. Is that reasonable, really, to anyone?

If someone is robbing your house and you say they probably beat their wife, should the robber be allowed to sue you? Other than a badge, what's the difference between these two scenarios?