I think Bae has jumped around and he must know where there is some other portholes in FL.
You know, back when we didn’t know who mystery man (aka Bae) was, many people saw the “cleaners and hatters” sign, and thought he had a connection to Jefferson. That he was the march hare, or something like that.
What if that IS kind of true–now that the writers know they won’t really have Seb Stan around due to his busy schedule, they may have grafted some of the “portal” jumper stories to Bae. It gives Bae a role. I was asking this question somewhere, that Bae doesn’t really have this identity to the group. He’s not The Savior, or the Dark One or whatever–so what if he is a portal jumper?
What better skill for someone to pick up if you’re trying to escape the Dark One? Of course at some point he ends back up in the Land Without Magic, and there he stays, meets Emma, and tries to “give up all that”
I don’t know if that’s where they are going but could be kind of interesting.
“If I had a world of my own, everything would be nonsense. Nothing would be what it is, because everything would be what it isn't. And contrary wise, what is, it wouldn't be. And what it wouldn't be, it would. You see?” -- Lewis Carroll, Alice's Adventures in Wonderland & Through the Looking-Glass