Not my comment but I had to read that a couple times too - I think it's more a reference to the latter part, as in, things not done well. A one-person shop might make a lot of excuses and not have the ability to reach quality production to the point of hiding the fact it's just a one-person shop.

Fundamentally I don't disagree; it takes a lot to 'sound pro' and a lot falls short...it's been a multi-year learning process on my end and I'm still nowhere near 'pro' engineer level, though some tracks might fool ears here and there.