I am a Mortgage Broker and a Realtor and believe me, they are not picking on you. They do this to all my clients. I recently had a $750k purchase where the buyers were an attorney and a doctor. They were putting $500k down on the home and had perfect credit. The lender was still asking for some ridiculous things. In your case they were probably necessary but just know lenders are more careful now then ever before. To a certain extent that is a good thing but it can be frustrating at times.
Good luck with your purchase and financing.