The nature of the game is that you won't be able to do everything in your first run - or your second. This encourages replayability, and isn't exactly unfair. You take a route and have sex with X character? Well, that means you were never in the spot to have sex with Y character, or you've never even heard of Z character.I can't even play the game because my save keeps saying I don't have enough stats, or I made a wrong story choice. Thanks for the fun while it lasted, but I can't play this anymore.
Fair enough that you're dropping - there's many good games to dedicate your time to. However, there's nothing wrong with a certain amount of exclusivity to scenes and consequences for choices: that's actually what makes Twine games of this type so enticing.