Earlier quoted context omitted.
That tweet sounds like doublespeak, but Directory Tiles really did have some genuinely good ideas mixed in with the bad. I don't know how far we got with it, but one of the ideas was to serve a generic bundle of ads, and then select which ones to display locally, based on an entirely private, client-side analysis of the browser's history. Now, that probably shouldn't have been on the new tab page, and probably not in…
You think because your code is running native you can spy on me better for ad purposes, and that's a feature? That is just tone-deaf.
Defining that as "spying" strikes me as a big reach. It's no more spying than (say) Windows observing what programs you use most and adding shortcuts to them in your Start menu. Software adapting itself to fit the user better is a good thing, as long as it's done in a way that respects the user's privacy, which keeping the data 100% local absolutely does.