yes. but this was not only 5 fans. considering my attendance is over 9k almost all the time, you can't compare it with only 5? can you?
i considered you to read the text above the survey, so i haven't to quote it so often:
on a small sample of fans
it is a survey, and surveys vary especially with a small sample, if it comes to election you use 1000 surveys and normally have an accuracy around 3-4 per cents and they even try to look to get a representative contribution from participants(like 5 owners of a small enterprise, 600 people from cities, 400 from the country).
I don't know any club, who optimize the accuracy of the survey like this, and also the number of the participants is different(much smaller, like also write on the survey page) so you should expect a bigger in accuracy.