Board Thread:General Discussion/@comment-1916997-20151005010223/@comment-4689777-20151006195140

Hmcooper4 wrote: So, I am guessing that somewhere off screen, before the cyclone actually hit Granny's, they had actually discussed this and determined that it would be best to not disclose their previous EF identities, but to stick with their Storybrooke Personas. Even when Camelot comes to Storybrooke, David only mentions the part where Arthur is a legend in this realm. Not a lie, but not the whole truth, either, since David clearly knows all about Excalibur (as we saw in episode 3x2).

I don't think it would have happened before the cyclone hit Granny's, because they had no idea they'd even encounter Arthur & co. - they were just going there to save Emma. It's possible, I suppose, that they managed to discuss it in private on the (supposedly) long walk to Camelot?