Are you talking slung shooting specifically?
NO. On a 1-10 scale, slung shooting rates in at a half point, not a full number.
What would be your ideal order of teaching legacy skills before teaching more modern bipod/artificial support techniques?
What you refer to as "more modern", support tactics began as a dumbing down tactic in military sniping.
It was too slow to teach legacy skills to new recruits and get classes out into the field, so "they" taught, use sandbags (or the poor man's benchrest) to establish supported position rather than using body strength and triangulated arm and body holds to establish support.
That allowed emphasis on BRASS (breath, relax, aim, sight, squeeze) and getting accurate shots off with something besides the shooter holding the rifle.
The school taught carrying empty sandbags to field positions, filling the bag, build positions, shoot the enemy, and exfil. You could leave the bags filled if it was the fastest move, or you dumped the bag, erased your tracks, and took the empty bag with you...
The Brits taught making bipods and tripods out of broomsticks, and some schools used arrow shafts. Then there were Harris bipods, up to the specialty bags you now see in PRS.
Using support methods is still the fastest method of teaching beginners, but, any shooter who only knows "supports" is handicapped when that's all they know.
I use the support method to begin teaching legacy skills, and then show the student where it fails them, based on a number of real world shootings, and advance from there, into legacy skills that allow to, in the most extreme example, naked, pick up a working rifle and get a killing hit in 3 seconds.
A shooter with that ability is a much better prepared individual than one who depends on a bipod and bag, and hopefully terrain that allows bipod, bag, or a rest's use.