It is certainly not as good as possible nor does it have anything to do with what I am trying to achieve. It is merely a tool for determining what others have been able to achieve on a "somewhat level" playing field. 
When I listen to YouTube, I am doing it sitting at my computer, listening over my computer's Advent system in near field. If I were to pipe YouTube into my living room over the big system, it would be subject to the same room limitations/modifications of my CDs.
While the Advent system in nearfield is extremely revealing and has a smooth FR, it certainly doesn't have the dynamics, volume, or imaging of the Mermans in the living room. Remember that YouTube is a tool and can only convey so much information.
As I said, the "commercial" effort (line feed) is as close as you will come to the source and while you prefer the sound a bit different, it's a distortion.
Personally, I like a small boost in the upper midrange to bring out vocals and detail, and prefer this to a flatter setting. Nor do I so much mind the room contribution which brings the venue to me rather than vice versa, though I'm not crazy about the dip from floor bounce.
Some distortions are to our taste, and some aren't. But when I'm listening to/comparing systems presented in YouTube videos, it is not about my personal preferences.