> Iran fired 500kg warhead ballistic missiles

Iran also fired “over 1,000 suicide drones” [1].

[1] https://en.wikipedia.org/wiki/Iran%E2%80%93Israel_war

Shaheds are heavy and big and I doubt that the new laser system can damage them. An interceptor drone is much cheaper and effective against them. This is more like defense against smaller FPV drones targeting bigger anti-missile systems.