Making two videos would be the better start tho, each video gets pushed by the algorithm separately and therefore we get double the potential chance of the video going viral or at least doing great and retention wise it's easier to keep viewers watching for like 60% of a 20 minute video than keep viewers watching 60% on a 40 minute video, also you and I are used to making like 15 minute videos. 5 more minutes aren't gonna change anything, it would be way easier to script and pace than a video more than double our usual length. You haven't even thought about the cliffhanger that will heighten the tension, which is something needed in exposés. If we just do it right then we can hook the viewers from part one to part two, hell they might even sub to see part two which in return boost part two again. You also forgot that we will have a higher amount on two videos compared to one which will potentially scare of Big S from responding which will basically make us win, and I like winning. Winners love winning (wlw), also repetition would be way less of a problem, while there's good repetition like callbacks or reframing there's also bad repetition like repeating information the viewer already knows without adding new shit or filler.