The relevant thing to a TDT person is "how likely is it that there's someone simulating my mind sufficiently accurately?"

"how trustworthy are doctors?" is a question that results in a simulation of a doctors mind. It seems, to me, that many people simulating that doctors mind will be capable of simulating it sufficiently accurately; even if they don't understand (on a conscious level) all the necessary jargon to explain what they are doing.