I think it does show some interesting trends. Atmo planets seems popular across the board. I was surprised to see space legs in 3rd/4th position given how many vocal people seem to think it is a bad idea LOL Everyone seems to want exploration improvements (which I thought would be along the lines as the new POI option really).
It's a shame that FDev wouldn't let it be shown on their forum. It may not be the most scientific or robust questionnaire but it does give a broad overview of what people want and how they play.
Interesting if nothing else.