It was a crappy thing to say, but I think I may know why he said it. iTunes changed the music industry in a way that many musicians disliked. It killed record stores and a lot of the culture that surrounded music, which was directly related to record stores. These are the places many musicians gathered, not just to buy music, but to meet each other.
The way I see it though, is that is was actually good for music and independent record stores in a way. Here in Chicago, the only stores that have survived are the independent stores. They've survived and indeed, thrived, by focusing on selling mostly vinyl. In big cities, vinyl sales are huge, but in smaller places, not so much. Their stores are gone. So I can kind of see what he's saying. That still does not make it right.