No, but that is the whole point.
Mortal insolence, as its name indicates, is a Miracle that allows the Faithful to stay alive one more turn, no matter what.
Most of the time, its opponents wouldn't care about that and trade blows with other foes... but sometimes, such luxury is not an option
Also, as Legu pointed out, it can also be used offensively with great effectiveness.
Overall, we feel (on the dev team part), that it's a nice little Miracle for our Wolfen friends
Of course, we will continue to read your answers and take your feedback ; so if you feel there is something wrong, do not hesitate to tell us !