Most people seem to ignore the fact that Sins Past damaged MJ's character worse than it did Gwen's- why didn't she tell Peter about the kids? Especially after she found out what Norman was? Quesada didn't specifically want it in continuity. JMS's idea was that Mephisto altered history so that Gwen never became pregnant,as a result Norman never killed her, Norman never faked his own death and Harry never died. This would have caused readers and editors a thousand headaches as they tried to figure out what was in continuity, so Quesada shot it down.