Honestly can't say than I can. I've never heard of it.
When I started brewing, I aimed to get to the point where I would prefer my own to any of the commercial brews out there. For the first two years, I kept stopping in on local bars to taste their offerings. Being a Kiwi, that meant reminding myself what Boundary Road, Tuatara, Emersons and Moa tasted like. And yes, they were consistently better than what I was brewing.
I say consistently, because occasionally I'd brew something sensational - and then it was back to holding my nose.
Not now. The stuff I brew is consistently better than anything I can buy. Sometimes that's not true, but at the end of the day, commercial brewers, no matter their style or scale, have problems I don't have, and will never have. That means once an home brewer has passed a certain level of apprenticeship, he will surpass all the others out there simply because he will never have their problems. It's as simple as that. You don't have to be a Zen brewer, owner of the one and only great brewing knowledge. You just don't need one leg tied behind your back, like the big boys. And you don't need to pay to be lamed.