Besides providing verbatim records of who said what, there is a second can of worms in forming any sort of binding agreement if the two sides of the agreement are having two different conversations.
I think this is what the part about the missed nuance means.
That has already become outdated, at least according to some economists.
Banks can just create loans out of thin air without having to check their own reserves first.
https://en.wikipedia.org/wiki/Money_creation#Credit_theory_of_money