If he indeed was just demo-ing something he built using existing libraries and a simple tutorial he found online ... that is a far cry from being able to claim he was demo-ing a piece of software he "wrote".
This is like claiming credit for a LEGO kit that you built by following the intructions. You end up with something really cool, but you had no creative input. It's much more admirable to take the pieces and turn them into something new that no one has ever thought of.
