As a Mortgage Lender recently, I don't think this should cause any major turmoil. The major issue with mortgages 7 years ago were Stated Income loans. In fact, many of the most popular loans available were referred to as NINA (No Income/No Asset Verification) loan or SISA (State Income/Stated Asset verification). To take it even a step further, the most popular loan I sold in 2005 and 2006 were the 1% Neg-Am loans (Negative Amortization with SISA standards of verification) which went as high as 90% LTV and allowed a 2nd HELOC for 10% of the remaining purchase. Countrywide and World Savings were the biggest culprits I encountered.
Nowadays every stupid little thing is scrutinzed...especially as it relates to self-employed borrowers. As @Aaron Norris mentioned, VA loans offer 100% financing and have a relatively low default rate. These loans always required income and assets to be verified thus making them lower risk. I think the 97% LTV is a great start as long as they adhere to the income and asset verification standards to qualify. Also, if FM/FM were to allow a new product, it should be a 70% LTV/Stated program with 12 months reserves for a primary residence. This would be an attractive product to people with larger down payments but may have more complex income to verify.