Board Thread:General Discussion/@comment-25926288-20150618155459/@comment-4839682-20150714153639

Eh, I find it equally possible that the curse pulled people from their worlds that Regina would need or wanted to punish on a subconscious level. I really can't get behind the idea that she personally crafted an untold number of people's fates personally.

That, and we don't know that Frankenstein wasn't in the Enchanted Forest at the time. There's many possibilities.