I think you are being a bit pedantic, taking the words "Make them P1" out of context. I fully understand what was meant by that, and no-one has yet suggested at any time an element of "making" someone take "Command".
Yet again making it complicated for no reason.
No, not making it complicated - being pedantic on purpose to emphasise my point.
I have seen, and heard of, too many pilots who flew way beyond their personal comfort level simply because their passenger had more flying qualifications or experience than they did; "knowing"/"expecting" that should things get too hairy for them their passenger would take over.
That, to me, is not being in command - it is being dangerously foolish.
(Pressonitis due to the assumption that a Pax is more capable than the crew)