I agreed with your point about Carmack's tone. But obviously someone who has the technical knowledge to program video games (slight as that actually is...) IS

I agreed with your point about Carmack's tone. But obviously someone who has the technical knowledge to program video games (slight as that actually is...) IS in a completely different ballgame from someone who, say, is trying to get rich by streaming on Twitch or making a content farm on Youtube. I find that to be a valid usage of the phrase "media people." As VR takes off, there will be a valid distinction between people who are using it more or less exclusively for purposes like content farming and marketing and people who are using it to build games or worlds of more depth than "look around this 3d photograph" or possibly "click the monkey." It's a valid distinction.