This SLF/attorney concurs with Consol -
but before the thread might be closed, the days of the "fam" - for familiarization - flights for ATCOs in the U.S. were quite a long time ago, as I recall. So much has changed, in the "aviation domain" and in general terms in the countries (and globally) where civil aviation operates, that any significant expansion of existing methods for allowing flight deck presence should be defined from the ground up. Fresh, clean sheet of paper.
For proof, today no one in their right mind speaks of flight deck access and security rules using words and phrases harkening back to that 1960s and early 70s television (or television-like) drama, Havana in Cuba.