Right; when I saw title I assumed Designer was going to be the context. I've also observed that Designer only works when I'm online, so I figured out that it uses external servers to generate suggestions.
I suppose it could/should be more obvious/explicit on the Designer pane itself, something like "This is an online feature that uses Microsoft's servers to generate recommendations", or a more user-friendly language.
Note however that the article is light on details; does it send a full content of slides? Some hash of text and images? A non-identifiable abstraction of layers involved? This could be done well or poorly.
(I don't think the submission should be flagged FWIW, but I agree that it's not of good enough quality to deserve great ranking; but that's of course subjective:)