I’m just going to put this out there…I think I heard this on one of the official podcasts that they might be exploring the dark fairy that Snow got the fairy dust from that she and Charming defeated the trolls with at some point. Is it possible that the Blue Fairy is really a Dark Fairy in disguise.
ETA: If Snow had used this unconventional enchantment and Eva had lived then Regina would never have become her step mother and might not have ever gotten to the point of being pushed to punish her by casting the curse. Even Daniel might have lived and escaped with Regina since Snow would not have been there to tell Cora about Daniel. Was this the BF’s way of trying to stop the curse from happening…can she foresee anything or did she have contact with the seer?
With that being said we know that BF could have told Rumple about making a wardrobe from an enchanted tree and spared everyone the curse but she did not…so was she trying to keep Rumple from Bae all this time? I mean if Eva doesn’t die…the curse isn’t cast and Rumple doesn’t get to Bae the either. I don’t know it just all seems suspicious imo. That and the fact the BF is showing up in quite a few episodes after Manhattan.