I definitely read this piece before, maybe in his book, and it was one of many ideas he put forth that were totally ahead of its time.
Zappa was one of the earliest advocates for digital recording techniques, and was most likely one of the first "major" musicians to make the switch.
Likewise, he was mashing up his own tracks across different recording sessions across multiple _years_ before it was made popular by off the shelf cut-and-paste audio apps.
Steve Jobs, Zappa, and countless others expounded ideas that seem outlandish and impossible in their present time only to become obvious 30 years later.
The moral of the story is listen to the crazy ones, watch out where the huskies go, and don't you eat that yellow snow.