The article, in a nutshell, tells that access to music, freedom to try out before buying, or just never buying, has affected the music industry and may kill it.
I hope it does. Just like the games industry. Art needs to be lead by a desire to create, not create money.
The music industry is a really good example of an industry that uses massive amounts of marketing to keep the wealthy, really really wealthy. Radio stations sometimes play music that's truly found, but the norm is that if the music wasn't bribed into the hands of a DJ, then it's not ever going to get played.
I feel the same thing is beginning to happen in games. We need to understand that small development companies can make a considerably smaller amount of money on games, not due to the games being worse, but simply because the bigger publishers get to spend lots more money on marketing, which in turn pays for itself keeping the rich, rich and the poor, poor.
Steam and other locked down providers (PSN XBoxLive) provide a way for the small guys to get their work out there, but we do need free advertising for these little guys, otherwise they're still not going to get the sales they deserve.
The same is true for music. I listened to Pandora, and spent at least £300 on music i'd have never bought if it hadn't have been for that "free" to listen service. Music industry, admit it, internet-radio is free advertising. Shut up about fees and win gloriously without trying by muzzling your lawyers.