Konata Izumi wrote:
The killing matters to Amy though, as she remembers everything relevant to it in both realities. The unhappening just makes it feel a bit less evil.
I get where you're coming from.
Amy (and the audience) gets the emotional satisfaction that comes from Amy murdering Madame Kovarian, but without the guilt since it didn't really happen and no one actually died.
But that's a problem. It's a cheat resolution in the classic Marvel Comics sense. The story does something that looks
significant, but then it wipes it away and everything is back to normal. I don't know if Moffat designed the story deliberately so that ultimately Amy is stainless, but it takes something away from the story when it lacks the conviction to actually grapple with its own implications.