The reason no one died is because they all have a role in Infinity Wars, but I wouldn't put it past Marvel to kill quite a few heroes in those two movies. They will be fighting gods after all. 

unless you mean random people. 

but Marvel didn't assume that we are all idiots, Bruce Banner ran away because he didn't want to hurt more people, that's pretty obvious in AoU.

The concept of Civil War is that they took it upon themselves to be judge, jury and executioner and that never works.

@ZetZet

The random people AKA people we don't care about what so ever cause its undershadowed by the heroes.

have you seen AoU? Bruce Banner shows a clear moral struggle about killing people and even bad guys.

I know. But I still don't care honestly. I could care less about the random peeps

but the movie wasn't about peeps. it was about control, cap didn't want another hydra to form, tony trusted the peeps.