To me it depends on what the goal is. If the goal is to learn the programming side of things, then fixing up the controls / adding touch is a good goal because

To me it depends on what the goal is. If the goal is to learn the programming side of things, then fixing up the controls / adding touch is a good goal because it would highlight figuring out how to get those things right even if it meant next week's game was this week's game + touch controls. If the goal is to explore gameplay ideas then input being a little sloppy is only as bad as its effect on playability.