I find this attitude puzzling. If they wanted to start, why not? It seems, according to the comment by the author itself, that they had a lot of fun, and it see

I find this attitude puzzling. If they wanted to start, why not? It seems, according to the comment by the author itself, that they had a lot of fun, and it seemed like an interesting project. So I don't see any reason to back away from it? On the other hand, for the precisely same reason, I see perfectly reasonable that they didn't continue with it. If the fun is gone, why continue?