If you had created the full breadth of those negative options and they don't get used, then you're sure in your results--no harm done, so no real reason not to do it. It's hard to tell if you captured everyone who visited this thread in those options if some found that there was no option that entirely fit their position. That's one of the issues why one tries to make a breadth of options that will allow at least one to fit, no matter how vaguely. One of my issues with the options is that if you construct the poll expecting a certain outcome in mind, then create the full breadth of options for those outcomes and yet leave a less full breadth of options to cover the negative end of the spectrum, you can't really tell that you captured accurate results. If someone pops in, looks at the options, and none really fit his/her position and he/she decides not to post or vote for the "closest" option to him/her, you lose a potential data point. Even if the options change, that person may never return to the thread.
One more option toward the negative wouldn't have hurt anything --I'll conceded that. The options were put in a particular order to try and create the natural J curve, but if we examine the results, the major glut is not at the lower negative end, but the middle ground. Like I mentioned earlier, I was expecting something like that to occur, I just wasn't entirely certain how that glut would play out. In this case, we're talking about the "cautiously optimistic" at about 22% of the vote. I felt I had offered every opinion an adequate home, but I can see why you feel differently. Unfortunately, the forum doesn't provide any tools to measure participation, so that will remain mystery. But in all the years I've been polling this forum, I've never seen such a robust response. This topic surpassed 50 votes in the first 24 hours --normally that level of feedback would take about a week. Guess I just put the poll up at an ideal time.

I didn't forget that option--it's just that I wouldn't be able to vote for the "No LoS even in 2D" option given the way it's stated now in the first place. It's not really possible for me to vote for that one since it seems to indicate that just the game being set in the LoS universe totally precludes purchase. There are people who feel that way but I am not one of them.
Kinda like presidential politics. There's no such thing as a "perfect" candidate --just the "best fit" or perhaps "the lesser of 2 evils"
What I'm saying is not that the people who already voted for that option need to be further subdivided. What I'm saying is that everyone who could've voted for some options apart may not have voted for them together, because a specific part of it may have fit them (Maybe once it gets to the bargain bin) but another part may not (Once burned, twice shy), resulting in 6%, down from a "real" combined 9% or something if both options were separate originally and everyone who could've voted did (sorry if this is a bit confusing, but it's hard to describe it without taking tons of space to do so).
Take an example since that may be more clear. Maybe you have people who weren't that impressed or interested by the game from the article so felt they'd likely to wait for the game to get cheaper if they were going to get it at all but liked LoS itself. They can't vote for "Once burned twice shy, maybe when it hits the bargain bin" since part of that implies they were burned by LoS when they liked it. They couldn't vote for the old "It's interesting, but not worth buying a 3DS for," since they don't identify with it looking that interesting. They certainly can't vote for "No LoS even in 2D." Maybe they could vote for the new "Not worth buying a 3DS for" option since that seems to be the largest catch-all negative option, depending on whether they think that implies they'd have to buy a 3DS to get the game (i.e. that they don't already have one) or whether they just interpret it as "this game doesn't look great--not a system seller."
Since that person didn't see an option that fit him or her, he or she may have just left and not voted, so what might've been an extra vote for an option is now no vote at all. The generic "not worth buying a 3DS for" may cover that now but it's probably a bit too late.
It seems highly unlikely that any LoS fan would find Mirror of Fate boring or unattractive, but you are correct to highlight that particular blind spot... How embarrassing.

*sigh* Hindsight is 20/20.