I believe the author is not stating how it works at the moment, but how he expects it to work in the future. "it will" is unfortunately ambiguous.
This strikes me as one of those moments where the distinction between "will" and "shall" is important, and it's not clear whether the author intended to make it.
If we'd to expert how it will work in the future, a lot more likely possibilities are that it'll tend to recommend either sponsored or spammed/crawler-bombed products. There's just too many opportunities to pass on for too many financially-motivated parties for any LLM's "own" "emergent" bias to not get messed with.