Makes perfect sense to have such a weapon,if you are a Paki.The specs of this weapon put this roughly in the class of the Tomahawk,not larger weapons.You can modify the torpedo tubes of their Agosta 90Bs or surface ships to fire those & upto 4 such weapons can be carried on those subs.It completes a poor man's nuclear triad!!
Their ballistic missiles are too cumbersome for launch from anything other than land platforms,reducing range & increasing it's vulnerability.
You know what really makes "perfect sense" if I'd be a Pakistani?
...
Emigration.