Author talks of text as abstraction compared to "edited" version of reality of visual media. But videos, movies, TV shows are also abstractions, possibly worse in that they more easily trick our subconscious into perceiving them as more real than words on a page while still being constructions of a "reality" based on the creator's point of view. So people think they have an understanding of the world based on fictionalized entertainment and tropes they've experienced thousands of times from screens.
Think of any time someone makes a political argument, or comments on a particular aspect of human nature by referencing something they saw in a movie. I think this is odd, at least if over done, as if the constructed media representation is somehow evidence of anything true. As if people don't have to have real lived experience of some phenomena as long as they watched something about it in a show or whatever.
Reminds me of Baudrillard's "hyperreality" [0] concept, where constructed media becomes "more real than real", here's an excellent presentation summarizing the idea [1]