I read the whole text.
As satire, it's very amusing. But of course it has a lot of flaws of reasoning if you try to take it too seriously.
For example, dyslexia would have existed even without books, and would have been recognized as a problem ever since the invention of literacy.
Also, a good argument could be made that video games could not possibly have evolved before the printed word...
Edit: Ooh, I just earned my first "star"!