I don't know, it seems like it's just fun thing to play around with. I don't think serious things are meant to be built on this.
I often want to play simple games like Pacman, space invader, breakout, tetris or some other random iteration. Sometimes there are non-spammy simple versions of this game but often there aren't. This seems like a pretty cool fix. And if they disappear in the future, who cares?