when their leaders are dead subordinates will take over. But for sure they will loss morale and blame each other, that will be an advantage in the military. President Duterte will keep on supporting the military to eliminate these pests of the country, there's no place for them on the planet.
That will not work for terrorists. It just happen on a movie that you watch, most terrorists are happy serving their purposes, so when they die, they've rather be thankful that their job is done and die in the time where they are serving their purposes.