As a dyslexic person with a higher education this hits really close to home.
Not only should we not be surprised that a LLM would be good at answering tests like this, we should be excited that technology will finaly free us from being judged in this way.
This is a patern that we have seen over and over again in tech, where machines can do something better than us, and eventually free us from having to worry about it. Before it was word processing, now it is accurate knowledge recall.