Context of what you are seeking in a poll is very important. In this case, the poll seeks to acquire a stable statistical view of what subscribers crave in the way of future content.
Stable and statistical? Right lol...maybe you can explain what "Planets" means then...it's the 2nd most wanted item...yet who the hell knows what "Planets" is? If Bioware goes and adds them to the Galaxy Map, is that all players wanted? Or does it mean new daily areas? New quests? New resources? Just...terrain? Ops? FPs?
The poll is fine for getting an idea of what players may like, but it's not even close to being the unbiased and scientifically accurate poll you pretend it is. All data is good...but this isn't better or more accurate than other polls or feedback.