>>529789992
>>529790070
>>529791068
SF's cumulation isn't the actual endings, it's the payoff to the bits of lore dropped throughout every single other route. The shit with the bugs, the timeloop, how woven both are into the local culture; it's no wonder this is the storylock route.
It's a bit of a microcosm of the game itself, where you either find out what's really going on or get a 'happy' ending.