Okay I think I figured out the game breaking bug you mentioned. The annotation thing should be easy to fix.
As for game design, I just thought it would be cool to have a lot of galaxies and stars to choose from, and I think the bigger galaxies look kind of cool to me, even if they are super laggy and don't offer anything new. There are smaller galaxies which don't suffer from performance issues, so you don't need to generate the bigger ones to progress.
That said, I agree that the game resembles a database, I never thought about it that way! I'll have to put more thought into this. I appreciate your constructive feedback!