I think this is the difference, and it is near the end of the article:
"...an idealized version of us. My husband’s gritty vocal attack was still there, but he was singing on key. And something about fine-tuning my vocals had made them sound more confident, like smoothing out a tremble in one’s speech."
For someone like me, this is what I am looking for. No one is going to pay to hear me sing, ever. But for my own recordings I can use a little bit of melodyne/autotune and now I am less apprehensive about releasing my new tune to the world (or more correctly, the family). It also makes it easier to create a CD that I feel OK about giving away to family and friends.
To me, if you don't let folks hear your recordings, you miss out on the true pleasure of recoding. Its like building an RC model airplane and never taking it out for a flight. But again, I am talking about us hobbyists, and not folks who make money off of this.
However, I can't say it is a surprise to see this happen on the 'professional' side of the house. Whenever large amounts of money are involved, the ones putting forth the front money want a return on their investment. Like payola from the 50's, this is just the latest scam to make sure they get the return on their investment. With no concern at all about who it might hurt - so long as they make their money.