Yeah but now they open themselves up to same problem we've talked about ad nauseam. "Oh no Flash is dealing with a super bad they can't handle. Well, just call Supergirl and she'll take care of it."
Right. If it was Black Widow: Budapest, people would be more excited.
Did The Leftovers end because Lindelof had a specific story he wanted to tell and didn't want to just keep it going?