I actually missed this, that said the pertinent details that would concern me and others like me are covered right here:

> As is expected with Apple now, searches and results are all encrypted and anonymized and cannot be attributed to any individual user. Once you click on the ‘Show Google results’ link, of course, you’re off to Google and its standard tracking will apply. Clicking directly on a website result will take you straight there, not through Google.

In effect, this is much like using Startpage instead of google.com, at least up until you load a full results page (which I actually haven't done in quite a long time now that I think about it).