Quick Question

Very nice point. Sensational movie. You made me realise a VERY significant thing:
Since the major protagonist, the edgy lady and her daughter, all made it, and all saw plenty of the travellers, if not them all, we may understand that the 'hero', accidentally wiped out the human race (!!!) by inadvertently having messed up with their quantum transition finishing what would have been the successful continuation of the human kind elsewhere.

I believe the hero realised all that in the last scene, making this a somewhat classic moment, like in the end of the original POTA.

Oh, and no, it is not clear to me why the cult was ever on TV in the first place, if it jeopardised their mission. I thought they were after new members by giving the world a chance, yet, wouldn't the audience terminate at least the creepy blond scientist, by witnessing him (I think it has to do with the Schrodinger Box principle)?

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Underwater Island will rise.

I believe it was said at some point, that "recent" contact with the knowledge of their mission would confound their interstellar travel. And I don't believe IO gave specific knowledge of the mission to the tv audience, thereby, not endangering said mission. Although I am to assume the mission was FUBAR when Vaughn escaped with Libby and her mom.