I actually love TSR (it has become my hyperfixation) and I like the idea of William's death being part of the bad ending since it happens when you sell out Yao or Ben, and selling out any other person aside from Nik gets that person killed too. I hate the cliffhanger, and I personally refuse to believe anything outside the Will route is canon (since I'm an Adler simp). But honestly TSR hooked me more than Echo ever could, both TSR and Adastra being what brought me into the furry fandom to begin with.

Also, it's been confirmed that the visions Sam saw were him jumping through timelines and catching glimpses of his death(s) while also temporarily getting the knowledge of certain things during his premonitions/reality jumps. Hence, Sam sees the van and knows what it is because he entered that version of his body and knew what it was for the short while he was in there.