what's the difference between "There is a similar technique using markov chain. The author don't seem to be aware." AND "There is a similar technique using markov chain! :) "
When you announce an improvement of 18-24% over the state of the art, what you think is the state of the art makes a lot of difference.
The authors state that HashCat uses Markov models and that they outperform it.
He doesn't get it. Someone else replied to his comment stating the same thing you did, i think he is selectively blind to the word "Markov", he missed them in the article and in the replies.