That is entirely intentional. It is still possible to read. At least short wods, and the longer ones you recognize, and can infer from context. The jumping text is mostly distracting.
I'm dyslexic but I have no trouble reading, I just flip letters and numbers around while they are stored in my head primarily. I dont look at individual letters as much the shape of words and context clues so changing a letter or two doesn't matter. If this effect was about half the speed I might get though the article without noticing.