The fed was a contributor in debasing our fiat currency by suppressed % rates for far to long.

And the longer the coiling, the bigger the jump when released.We are now in year 3 of suppressed demand.

I'd probably say it is whether or not the bank has an appetite for real estate investing.

They outlaw the type of property, or suddenly increase code enforcement, or decide they need a new fire suppression system and escape system, and an elevator?

Until prices adjust downward, I'm thinking 25%, demand is going to remain suppressed no matter how many times the Fed cuts rates.

At this point in my investment career, subto exposes me to more risk than I have an appetite for  

Appetite has not dwindled for investors wanting a flip.

There is much less appetite for DSCR loans sub $100k on the secondary market which is why you may be running into this issue.

The prevailing desire is to achieve the desired financial ends, in the most expedient means possible, within their risk appetite, as simply as possible with least impact and intrusion into their active daily lives. 

Since there is no 'underwriting' process you will set your risk appetite and tolerance and will want to review: Income (ability to pay), credit (willingness to pay) and cash (assets, savings and percentage down).