I still find this problematic–the story of Jekyll and Hyde *is* a complete story in our world. The novella has a very clear ending, a very clear message and thesis. I know the writers don’t really think in these terms but I find it problematic.
As we’ve talked about before, this doesn’t just apply to Jekyll and Hyde, though. Most of the stories we’ve seen adapted on OUAT have taken place years after the stories in our world were already written. The ending to Aurora and Rapunzel’s stories even occurred post-Curse.