Interesting comments! As some have posted, plot outlines and ghostwriters have been around for a long time, and I don't think either is going anywhere soon.
Many of the Kindle publishers, who make thousands of dollars a month, consistently, do so because they take advantage of helpful tools like these. They are able to publish more quality books faster and keep the money coming in. Whether or not they choose to have someone else help with the writing it totally their call, as the reader doesn't know the difference.
However, like any other product or service, it is only for those who see the value and want to take advantage, but is certainly is not for everyone.