Originally Posted by
Prix with a Silent X
This is very much a personal take on it so take it with a grain of salt but I don't like it because:
1) The notion that Sakura is forever hyper-libidinous for some reason (feels icky for her to have 'gotten over' anything) and that this plays into Shirou having no choice but to have lots of sex with her to survive. It just... seems like it could breed resentment in one direction or the other after the new and teenage hormones wore down.
2) The fact that the part of the epilogue with Rin goes out of its way to mention that she still has feelings for Shirou in spite of some casual attempts at dating suitable guys at the Clock Tower, contrasted with the fact that she eventually moves on and has a daughter with somebody if Shirou is dead. HF actually has some better "Rin and Shirou are soulmates" material than UBW does, and it just strikes me that there's a ton of potential for them to have, at the very least, emotional infidelity that could ruin everything for everyone.
3) Related to #2 there is the fact that (a version of) Shirou literally always comes back for Rin in every iteration of this story, even if he dies in the end to protect her, contrasted with the fact that Sakura has to "It's spring again," be kind of crazy.
Not a dislike of Sakura or Shirou. I just get really sad thinking about them as endgame.