Doesn't seem very far-fetched to me given how railroaded some of these surveys seem. Surveys can be very useful for showing you were "right".
Except a number of insiders have given us clues as to what some of the survey results are including things the members of this board didn't think were that popular, but are. We we told that general satisfaction (GSAT) was higher for the MK with Stitch closed than open.
Of course surveys are not free from bias because just choosing what to ask about is bias. We may hate Attraction A and wonder how come Disney never asks about Attraction A so that we can spew our bile upon it. But Disney knows that Attraction A gets a good number of guests according to tracking data, and so they never ask about it.
But then, for example, our beloved Attraction B has been seeing its guest attendance numbers go down, and so Disney puts Attraction B on the survey. And then we panic thinking that Attraction B's days are numbered because of it and shake our fists that Attraction A still isn't being asked about!
Some will say "Hey, the survey is biased!" But in this scenario, no. It's not biased at all. Disney wants to know about an attraction that's getting less attendance, which is a perfectly normal thing to ask about. Or perhaps beloved Attraction B is expensive to run or needs major refurbishment and Disney wants to know if it's worth it.
Surveys are not a suggestion box. Anyone who thinks that they are doesn't understand surveys.
Anyone who thinks Disney hires expensive data and polling analysts and spends hundreds of thousands of dollars a year just to do what they wanted to do anyway is in conspiracy theory territory. Especially because Disney almost never reveals the results of the surveys, so, who are they justifying the results to? Themselves? They could have just decided to do what they want anyway.
No tool is perfect or without bias, but the claim the surveys are a sham is an absurd conspiracy.