I suppose a big part of it is: People don’t often finish games. Remake is obviously a very long JRPG on its own, so when Rebirth came out, maybe a lot of people thought “Oh yeah! I should finish Remake.” and then didn’t.

That does present an interesting idea to me though. Maybe I’ll just buy Revalations without playing Remake? I played the original - I already know the broad direction the story has gone. I could maybe just watch some cutscenes on YouTube to figure out whatever the hell they twisted the Temple of the Ancients story beat into.