The suspicious part is that the "corrected" version only appeared in one link, the first. So it doesn't seem to have actually recognized the misspelling as such, but associated it with the Wikipedia page through some other mechanism. There's definitely a circumstantial case that it's through the Google clickstream, though I don't think that's the only plausible explanation (especially given that it's a Wikipedia page).
Right. Typically, Wikipedia would know have a record of the search term being used to reach the page. Of course, it is plausible only if Wikipedia shares that information with others.
