well, listened to it, and it did not say anything about that "before" question, but it reiterated the findings, that no matter how much the universe expands, there is always more energy in the newly acquired space, implying and confirming that there is no such thing as nothingness, but that even the best vacuum is filled with energy, hence there was energy before there was space and matter. It said nothing how the laws emerged, and having multiverses just kicks the ball further down the road.
another note about the flat , "dark matter"-caused even velocity curves in galaxies. Have they thought about the fact that there is no gravity in the center of galaxies, the earth, stars? with no gravity in the center, and max in the periphery, why would it be surprising that in a matter-filled entity, like a galaxy, the outer velocity would be high? so, to quote the video" they invented dark matter ". nothing said about the nothing before the beginning, about time itself. but a reminder if you look at the real thing, much more impressive than the video visual, kerosine - burning big bang, how small we are. thank you is all i can say.