If you read the article carefully there are multiple mentions about this, specifically I wrote that RDB persistence is just perfect for this: a single-file compact representation of data to send far away :)
Hmm, I was thinking more of "sending chunks of AOF" out to a separate, distributed storage (and the RDB snapshot file occasionally). Loading data from network could then be slower than from a disk, but also faster than from a disk, depending on network speed and number of machines to read from.
