I think that is a completely different type of situation. Osama took credit for 9-11 and was America's Most Wanted. As with any criminal on the run, once you find him, you go get him. That is a very easy one to call. Military intervention in a sudden flare up or conflict is a very different situation and leaders sometimes wait to see how developments unfold. Sometimes, they wait too long and regret it, sometimes they are prudent to wait or not get involved at all.
But Obama doesnt strike me as the type who will rush into any Israeli conflict even if its with Israel fighting groups on several fronts. I could be wrong but I dont think he would move very fast in any further participation in that region in spite of your example of the easy call to go after Osama. Again I could be wrong, but thats not the way I read Obama
The proud man counts his newspaper clippings, the humble man his blessings.” Bishop Fulton J. Sheen