Non-lenders? Secondary market isn't universal. About 50% of bank lending is in-house or private non-FHA, VA, or Fan/Fred. Some banks have no loans thru secondary market. They are internally funded. Tyson, Walton, etc. are putting their own money to work, not the secondary market.
You need to get further from home George... you know, places where a 1800 sf house doesn't cost $1,000,000. Explain the demand for raising the de minimums to $500,000 then. In Wally World hdq. (Bentonville, AR) that's most commercial and residential property. 26 properties sold for over $500,000 (last six mo.) in a place with over 600 sales and the bulk of sales were between $250-500,000. Never mind Hel's, personal loans backed by RE, etc. The evals are running hot and fast as is. Ten years ago appraisers did almost all below de minimums work. A couple in house appraisers who also reviewed, a couple of small banks had a non-licensed evaluator.
So again, if all this is strictly a secondary market issue why would banks want to raise the de minimums? Whose skin is in the game?