Don't worry: I know what it's like to end a jam game with 30% of the game you planned. To be completely honest, the idea of having a rating system was something I wanted to do in my game too, but cut out due to time constraints! So I completely understand your point of view. But it really is a good first game. If you want to release a more complex version after the jam, I think it would do well.
But then again, I never work on my jam games after the jam, so I understand if you end up never touching this again!