As someone said somewhere before, they did rank Star Trek 2009 on #6/12 (13) films at that convention. Just like they ranked Frakes' First Contact #2 and Frakes' Insurrection #11. It's called taste.
I just think it's funny that that is the only poll I've seen that ranks Into Darkness
dead last and them putting Galaxy Quest
in there was simply a way to insult the film even more.
It really feels like a poll where the numbers were cooked. If there was actually a poll at all and the person responsible didn't just made it up because he/she has an ax to grind.