Just because you didn't prevent your opponent from scoring doesn't mean you can't score yourself.
Also, why burn the resources? Attacking isn’t free.
It's like saying "the police doesn't care any more citizen, so you know just punch back". It's also incredibly dangerous btw to tell private firms they have the authority to engage in what is basically an act of warfare.
There's also a quote from Prez in The Wire, "Nobody wins. One team just loses more slowly"