The adult films was an analogy, and a joke from another thread. The reason I didn't further go into it is because of forum rules- the Grandmother Rule.
Like all analogies, it is imperfect. I personally don't consider it offensive, in the sense that I don't find adult films offensive- to the extent that someone finds them inherently objectionable for moral or other reasons, then feel free to use a different example.
The sole (and joking) point was simple- that you are watching a performance. For an audience. By performers. That to assume that the things that you watch can (or even should in some cases) be applied to your home game is usually an error. This does not mean that the things you watch aren't real, or don't happen, but simply that they are performers.
To the extent that you keep reiterating this point-
They look to me like a group of people playing D&D.
Yes, you are right. That's because they are REALLY REALLY REALLY good at what they do! But your continued objections that they are just a bunch of people playing D&D doesn't do them any favors- in fact, it denigrates the preparation, talent, and years of work they have spent acquiring the skills to make it look easy and effortless.