This may be a bit controversial and you are free to disagree. It is regarding Eirin's ultramarine orb elixir or the point device mode in lolk, how does it work canonically? Some say it shows one every potential future where they are killed in a fight and forced them to relive each instance until they get the one they which they survive groundhog day loop. Junko said no matter how many obstacles she threw at heroines, they overcame, probably because the potion enables them to keep coming back.
I don’t recall the exact details, but my understanding was that it shows the future like you said. Ultimately only the result where they survive actually happens though, and that’s what Junko responds to. From her perspective the players are simply perfect and never make mistakes. You’d have the same response if you saw someone get past Piece without losing a life.