This is an odd rant.

What's the alternative?

The military gets called in when the Hulk is trashing a city.

They have a weapon that can kill him.

They use it. He dies.

...you hear crickets for the next two hours.

Suspend your disbelief and enjoy the movie. We know spacecraft don't make sounds outside of earth's atmosphere and people can't breathe underwater. We accept it because it's fantasy. Otherwise, we'd just be watching documentaries.