The other half is the culturally ingrained phenomena of "the dream." Many artists jamming in their basements dream of "signing," and expect a big advance, tours, radio play, and all of that old-world stuff. Many today of course realize that there's the Internet and they can afford to distribute their work for pennies and market to their hearts desire; but even those artists generally still think that "signing" is the next, big logical step.
The big labels cannot change. The 80s and 90s left us with a market and taste for stadium tours, music videos, and times square billboards. Six decades of business have given us a model that requires a huge up-front investment for a risky, but lucrative return.
The problem is the returns are becoming scarce.
Yet I think big labels will continue to persist only because they're the loan sharks with the money. I think the author is pretty close to right that there's likely no one that will fund a start up that has anything to do with music. If you have an innovative idea that you think can improve the situation, create new markets, etc you'll have to do it on your own.