Originally Posted by TheFlamingCoco
"kill his villains to win."
I'm sure Superman didn't feel like he was winning. Zod was beat and wanted to die. Superman knew that if he didn't do something, more would die in the long run, and a visible family was at stake. There wasn't any longterm solution. Unless this is an ongoing problem for the series, I would consider it to be a fluke and not let it ruin the franchise for me.
It could have had major, major impact if this were Man of Steel 5...but it is a redefined origin, with no back story about his morality/no-kill policy.