User blog comment:ArtDraw12/TD Theories: TD Eliminations' Analysis/@comment-31556666-20160516235215/@comment-11883116-20160517165905

Exactly. It wouldn't be the first time someone voted for someone they're close with. And Alejandro wasn't seen convincing Courtney to vote for Owen. It's Total Drama, it's not too complicated, so when there's some important action they show it, or at least mention it if it happened off-screen. Alejandro convincing Courtney to vote for Owen was never mentioned. Duncan missing Owen in the very next episode? Possibly a goof in continuity. Also, that Heather's question if Courtney voted for her twice is most likely a hint she did vote for her (not twice though).

Wait, I did say Owen voted for Heather. So you consider only two votes to be wrong.