I recall a “what are you waiting for? shoot him!” being said and Emma telling Rumple to stay over the magic side of the line just in case. In fact Emma only hesitated because there wasn’t something quite right about the “Pan” in front of her.
Emma didn’t say that, though. You were implying that Emma took Pan out there for the sole purpose of killing him. She was already suspicious that something was wrong, hence taking the box out to the town line in the first place. She knew something was off with Henry.
It’s grounded in the fact that in the season 2 finale, the Charmings gathered all their friends in the diner, which didn’t include RumBelle or the rest of Storybrooke and were planning to portal to safety whilst Storybrooke was destroyed and everybody else died.
Rumbelle were a little..uh..busy and Rumple had already declared that he wouldn’t be helping to save the town.
Also, I might be a very harsh critic but I recognize that you can’t fit the entire town into Granny’s diner. They used all the cast members that have had speaking roles in the past–the dwarves, Granny, Archie, BF. What happens after Emma and the gang go to the mines…maybe the dwarves went out and spread the word. Leroy is good at that.
But then wasn’t Regina taking the law into her own hands by deciding to let Zelena go free?
She didn’t let her go free. She put her in jail. She told Zelena that she was getting a second chance, but she did not release her to the general public.