I voted in that poll. It was kinda flawed in that there was a large number of moments (like 10 or more) from TOS and TNG and the TOS movies but not as many from DS9 and VOY and the later movies except for Abrams. There was only bout two moments very badly chosen from ENT so its not surprising it only got one moment voted for. Also most of the TNG moments were Picard or Data moments. Moments involving other characters like Worf killing Duras were not included.
Imho it wasnt a very fair selection. Also it was possible to vote mutliple times just by leaving the website and then returning so anyone smart enough to figure that out could have easily scewed the voting in their favour just by voting a couple times or more each day until the poll closed.