I thought it was confirmed, but i don’t remember where. There were a bunch of articles at the time.
My thing is, if the writers won`t say now that those words were said about what was happening in the present SB, which is would also not be a lie, those scenes in the beginning of 622 would be a flashfoward from the present SB, but in relation to the new scenes, those EF scenes happened in the past, which also would make sense that they were in EF and then with the curse went to a new town in our world.
@TheWatcher great question.
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"I offended you with my opinion? Ha, you should hear the ones I keep to myself".