Air-launched interceptors like this have the problem on relying on a super-expensive manned carrier (fighter or helicopter).
The intercept cost is now not only the cost of the interceptor, but also the cost of the flying hours of the launching platform, and the risk of losing the launching platform.
If you equip even some of your Shaheds with AA missiles (cheap manpads with autonomous IR target acquisition and guidance), like is already happening in Ukraine, the feasibility of APKWS becomes problematic. The technology is developing fast these days.