I think MajorJuggler's work will be a little more useful in determining the actual balance of the game. People aren't rational, especially when it comes to losses. Take a look at the pvp forums of any MMORPG for proof.
I think this survey is more about peoples opinions/impressions around the game rather than the actual state of the meta. If you note, there is a bunch of questions around when you started playing, what type of player you consider yourself and how well you do in tourneys. These are not important for determining how to fix the game , but are important if you want to gather demographic data to compare/group people for analysis of the other opinions.
If the OP was writing a thesis, I suspect it would be titled something like "X-Wing: Styles of play, entry points into the game, skill level and their effects of their view of the Wave IV metagame."