That might be a good story for local consumption, but the truth is very far from the rosy picture you try to paint. Had ISIS been such an easy foe it would have been finished off long ago. You can never explain to me how ISIS is able to wipe out entire armies and regimes in cities and countries without much resistance. ISIS has the backing of strong world powers and they will be fed and controlled to bleed the Americans dry in the Middle East. This is not about ISIS anymore. This has become very complex. This is about keeping the Americans occupied and why shouldn't its foes take advantage of the situation? This is about settling old scores. I call it Cold War reloaded. The irony is that the US created the mess initially and others are now simply returning the favor. ISIS is a Frankenstein monster created by the Americans and it won't die that easily. No amount of operations and air strikes can take these monsters out. It is because they are monsters and they have proven it over the years. They are so cunning, smart and adaptive that the US generals and their coalition on the ground are dumbstruck.
http://www.bbc.com/news/world-middle-east-37719634
You say ISIS is shrinking. I say it is growing. The proof is all around you. Just look at the Middle East and beyond. Also, AQ once seized to exist. Today they have taken another form. Don't be too sure about your claims. These groups have become too powerful and are beyond total destruction. They have the help of strong world powers.