Why is this important? What makes this different from any other open source game clone?
While this particular game might not be that important or different, I think the amount of game clones and interest in them is good.
One of the ways to perfect your skill is to mimic and clone something that you care about. Kind of like musicians play and make their own covers of their favorite music.
Your attitude is why the creator of Flappy Bird took the game down in the first place.
If you don't like a submission, flag and move on.