I think that your article is missing some key elements.
First, there is a big difference between performing w/ a band in front of people, and composing; creating music in privacy/wee hours of the morning type of thing.
Playing live is a gas, fun, creative.
But actually creating the music is mostly done solo or w/ a partner.
Also, laying down tracks pro tools/garage band style is the method thats used for recording. It's news when someone recordstheir album live .
And, there is nothing more creative, enriching, fulfilling than being able to lay down ideas at any time on the mac using GB or Logic or ....
Think of it as the 21 century equvialnt of picking a up an acoustic guitar or going to the piano to work on a song.
Garageband: Harmful to Musical Creativity?