Originally Posted by 747
The attack on Tony doesn't seem like it's seen coming from miles, it's not like Hulk can just pop up right after the attack out of nowhere, or anyone else for that matter. Things like this happens in the comics all the time. Not even these superheroes can save everything and everyone at once. And threats, disasters and trouble comes all the time, all over the world and even universe.
That type of logic will be lost on some people. I'm sure they will be a reference to the other heroes though but it doesn't really have to be explained. They all went their separate ways. Banner and Tony might have mutual respect but don't have to live together.