That looks much more like he quit playing online. Saying he 'just got lucky a few times' is very odd. Ivey is considered one of the top pros by virtually everyone.
His live tourny stats: http://pokerdb.thehendonmob.com/player.php?a=r&n=127&_ga=1.1...
Beyond that, he (like many top pros), prioritizes lucrative cash games over tournament play (or exploiting an edge at baccarat, if the opportunity arises) which we can't track.