It just doesn’t make sense that Henry and Violet would go to New York on a bus, Rumpel would go in his car. Emma’s bug is there as well, but then they popped out there through a portal. That doesn’t make sense. Emma’s bug would only be there if they drove there and not that they arrived there via portal.
I guess you are saying that Snow, Charming, Hook, Zelena get sucked into the portal and come out in New York, but the others drive there in their cars. That just seems so bizarre. And why were all those people throwing coins or stones or magic into the fountain. It just seems so random.