Yes, the survey is a pain.
But if you ever want anything from FSA, or if you are proud of anything you do in agriculture, you'd better fill it out. All the statistics about how many jobs you create, dollars put in the oommunity, etc come from your survey. So does all the information about what programs are important, and which are not.
If you think farming is irrelavant to this country, and you want governmenbt to ignore ag's importance, then by all means throw it away.