Art,
Great that your first reaction is a vague attempt to question the validity of what he’s doing.  Haven’t we been here before, when you insisted that it’s easier to fake a SPOT track with a relay team than it is to fake emails from a few random strangers who claim to have seen you?
Nobody is going to devote time to devising rules for anything until the pioneer attempts are made, and then the rules/conventions will emerge organically and can be discussed.
Brian Lucido described what he was doing last year – following Steve Roper’s canonical route, which is thoroughly and accurately described in his book. Â The mountain passes are natural waypoints, and the precise route between them (where it’s off trail) is not critical. Â In general, Roper (and Andrew Skurka) describe optimal routes between the key passes and other major junctions, and I can’t offhand think of any shortcuts that are not blatantly deviating from large sections of the essential route that Roper describes. Â In effect, in his description of the route Roper has already done what you suggest.
But can’t we just celebrate what Leor’s doing for now, and argue about the arcane theoretical details of a general rule system for off-trail FKT’s if and when it really becomes necessary?