This is obviously just a proof of skills. He isn't trying to get on top of everything and everyone, but he's simply showing that he has the skills needed to do

This is obviously just a proof of skills. He isn't trying to get on top of everything and everyone, but he's simply showing that he has the skills needed to do a full redesign. By asking users for feedback, he shows that he cares what users want and isn't just here to implement whatever ideas come to his mind. So if he gets an offer, it would most likely be as a designer. Of course the HR department will have to make sure that his skills also work in the given team.