I read that article with interest in so much as I own a CVA Accura V2 and had previously owned an Optima Pro. Both rifles were and are very accurate. Do I use "Magnum" loads - No. Will I ever? Probably not. No need.
But the article takes me back to my 35+ years in quality control. First if they say that inspect 1 out of every 25 barrels, that is a a pretty weak sample size. Even a moderate sample would be 8.
Because of this will I stop using my CVA Accura? - NO