You make valid points, but please stop saying that naive users are grandmas. I even specified he was my housemate - how many elderly people do you know share a house? It's even the wrong gender. The world's non-power computer users are not limited to grandmothers (who seem to be all about desktop use) and toddlers (who seem to be all about iOS).

Also, my colleague didn't give up on Ubuntu. He just noted four different ways to fix the given problem in four consecutive six-month releases.