Fannie has said it's not required but that does not prohibit lender to ask or require it - Personally I will continue to use it anyway because in order to determine market trends I still have to go through the same steps and exporting the data into the 1004MC only takes an-additional 5 minutes or less - Also my program includes some nice charts and time adjustment info.
The real question is can you squeeze a few more bucks for expanding the sow beyond Fannie minimums.