Chrome was unavailable for testing because they made a last minute patch that would not have given the hackers an equal amount of preparation time as they had on the other browsers and nobody cares about Opera so nobody tried.
See what happens when you don’t read the article.
Maybe that’s a good case for using Opera? (Hackers not interested in spending the time to hack it.)
Doesn’t Chrome run off of WebKit?
If Safari was hacked, then likely Chrome would be too