I couldn't disagree more with your post. The author is basically just putting out a detailed study plan for passing an exam. If a doctor posted a plan for passing the medical boards would your first thought be "Wow, look at that massive medical monoculture problem!" That seems like a ridiculous stretch in my opinion.
To your second point, I hear this all the time in threads about tech interviewing: "Tech interviews are biased and make no sense" and also "I'm too busy to have to do a lot of work for this interview." If you don't want to put the time in to prepare, fine, don't, and then see how you do. Again, in my mind it's very similar to studying for the medical boards - in most cases doctors have many, many thousands of hours under their belt in training before still needing to study a ton to pass their boards.
To your second point, I hear this all the time in threads about tech interviewing: "Tech interviews are biased and make no sense" and also "I'm too busy to have to do a lot of work for this interview." If you don't want to put the time in to prepare, fine, don't, and then see how you do. Again, in my mind it's very similar to studying for the medical boards - in most cases doctors have many, many thousands of hours under their belt in training before still needing to study a ton to pass their boards.