Interesting. It's funny how things that were considered occult (remote viewing, telepathy) are now commonplace, but with technical understanding applied, they no longer have any mystery behind them. (Live camera feeds, phone/radio conversations)
My take away is that the kind of television described in the article was one that allowed something to be seen that couldn't otherwise. Like how night goggles or UV vision gives us access to something normally obfuscated. In a way, I think that idea is very much alive in TV, and by extension film altogether. It is, after all, still an illusion. But through all of the make-up and lighting, sets and camera tricks, we allow ourselves to believe.
The problem is here, that all of these things were supposed to be done in an "occult" way. People claimed to do remote viewing, telepathy, etc, even before the idea of TV existed. They never looked into radio waves as a way to transmit, and all of their claims revolved around the human mind doing the things. Those things that were considered occult, are still considered occult. TV isn't remote viewing, it's technology that allows something similar to remote viewing. People out there STILL claim to be able to transmit info through "energy" they focus and send through their mind. People still claim to astral project, or speak to gods, or make people do things through energy stuff. It's still "mysterious" to them. However, it's easy to tell now that it's all placebo and woo, thankfully.
I was really more talking about how we found technological solutions to accomplish what occultists have been trying to do for a long time.