yes, it's true there can be overfitting going on here. Yes it's true the article isn't clear about what exactly is expected to be learned to imitate. But i believe it's very similar to how kids learn. Sometimes you get baffled to how kids interpret your actions and what you ask them.

For example, i remember an adult asked a kid to recite the alphabet backwards, and surprisingly to all, he turned his body away from us and recited the alphabet from A to Z instead of what we were expecting (ie Z to A)!!

Anyway, we cannot deny the fact that these experiments are steps toward progress. Great job!