I mean, I liked the movie well enough. It’s not up to MCU standards, but Batman v. Superman had some very decent elements in it. Mostly, as that video points out, involving Batman. Ben Affleck actually worked as both Batman and Bruce Wayne for me; and, hey, no origin story. It can be safely assumed that we already know the history there! Which is great. It may confuse the dickens out of 30th century researchers who may not be familiar with the iconography of the Early Middle American Period, but then they can always just ask Superboy anyway.
…No, I have no idea who could properly direct a Legion of Super-Heroes movie, either. It’s a tough question, isn’t it? You’d probably want to just turn it into a miniseries, or something.