Did I get under your skin a little??
First off you don't have to be an accomplished shooter to not be a dabbler. The typical dabbler is the guy who shoots once or twice a year and rarely owns a firearm long enough to see 4 digit round counts. The dabbler can also be the guy who must have all the latest gadgets and yet still can't achieve even an average level of competency.
One test on one scope isn't the absolute gospel on the subject, but unlike someone's opinion it is factual and undeniable. I'm not saying Jerry is a liar but I am saying that talk is just that, talk. Never lose sight of the fact that Jerry sells optics to include Sightron so talking up the brand is in his best interest. As for winning competitions, who cares.. Every match and every discipline is different, some are done on well manicured ranges with zero chance for rough handling of the equipment while others are quite the opposite. The vast majority of gun owners have bought and paid for their own gear. I highly doubt any of us are in the habit of regularly abusing our gear. Taking someone's opinion on their "match" wins means just as little as their personal opinions on unicorns.
What I've posted in the past and with the videos above is not my opinion but fact. Feel free to read up on the manufacturing processes of Nightforce and then try and find similar specs from the other companies mentioned, I haven't found any data. I'm sure Sightron/Vortex/Leupold polish their turret springs for two weeks before they inspect and install them. I'm sure they spend many times more on that(titanium) spring like Nightforce does. I'm sure the other guys use tubes 2-3x thicker than most in the industry like Nightforce does. There are other points as well but I think you get the idea.
Here's a durability test for you. I know, it's just a video which means nothing. Oddly enough I could only find similar videos for Leupold scopes, nothing for Vortex or Sightron.
https://www.youtube.com/watch?v=JQRe_-fgmGQ
http://nightforceoptics.com/news