All-time winnings is not the best measurement as it doesn't take into account things like years played/measured, single individual large wins, etc. It's a decent list for one mode of inspection (winnings) but shouldn't automatically be taken as a ranking of players by skill.
Ivey is a very good player, for sure. In the context of HU play (as being discussed in the article), there are better.
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.
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.
Is this list COMPLETELY inaccurate? Why? Has it ever been? Which list is better?
https://www.highstakesdb.com/poker-players.aspx?sortby=winne...