Wow! What a headline: It makes it sound like DDG was compromised by Google.
spoiler
It wasn’t.
DDG protects you from Google (knowing your search history, and which links you clicked from each search) while you are on the DDG website. Of course it doesn’t protect you from trackers once you leave DDG. For that you need other cookie and tracking blockers like PrivacyBadger, uBlockOrigin, and Firefox’s Enhanced Tracking Protection.
It is definitely an important point that up to 40% of US sites send user data to google, but that is not something unique to DDG. A more accurate headline would be “Google is tracking you even if you never use it.”