The creator of that video is a member here and has posted a number of his videos here as they were completed - including the one linked in the OP.
Once again, FliteControl was specifically developed to be used with OPEN CHOKED smoothbore shotgun barrels. Using it with MOD or tighter chokes will likely yield more open patterns than a straight CYL or POLICE CYL choke.
I've used Federal LE 127 00 (9 pellet 00 buck at 1325 FPS, with FliteControl) since it first became available, and it is IMHO the best thing currently available as far as buckshot is concerned - in open choke shotguns. This after literally YEARS of experimentation and testing with various barrels, internal barrel geometry, choke tubes, loads etc. on my own hook, paying every bit of my own way.
Objective? Nope, not at all - I'm biased in favor of tight patterns and full bore performance as far as buckshot is concerned. If painting my shotgun purple and pink would make it pattern tighter, I'd be toting a pink and purple shotgun, guaranteed. I don't care WHAT makes buckshot patterns reliably tight - that's my bread and butter.
And FliteControl WORKS. Naturally, it is still subject to the vagaries of all shotgun barrels being different, so patterning is STILL necessary for your individual barrel. And one more time, use it in CYL or POLICE CYL chokes for best results.
There are reduced recoil loads of buckshot with FliteControl available, but I don't use them - I want full velocity for maximum terminal effect. I don't hunt with a shotgun any more at this point, so my only concern with all this is strictly for defensive use. And my aim for years has been to eliminate the so-called "B Zone" and extend the "A Zone" to the maximum distance possible. For a good "old school" discussion of all this, see
http://www.frfrogspad.com/shotgun.htm.
I tried for a while to push effective buckshot range to 100 yards ... and managed to do a reasonable job of that at one time, with a particular load and an expensive, complicated choke tube that limited the shotgun's ammo to buckshot only. That was too much of a price to pay IMHO, however, so I abandoned that particular experiment.
FliteControl does what I want it to do, reliably and dependably, and the open choked barrels it works best with impose no ammo limitations on the shotgun. IMHO ANY extended range buckshot or slug shooting is better done with sights of some kind, but if you are young, or just have good eyes, you might well be able to do all you need to do with just a bead.