It's perfectly reasonable to attribute it to a lack of skill.
Well, it's a style – not to engage in scouting, not to get distracted by exploring, but to follow the leader. Who said you can't play that way?
And in general, in my opinion, you're confusing weak gameplay with unfair play.
There are 2 decks – red and blue, each with 100 cards, and each card has either a zero or a one drawn on it. In the red deck, there are 80 zeros and 20 ones. In the blue deck, it's the opposite – 20 zeros and 80 ones.
The dealer takes one of the decks (you don't know which one), shuffles it, draws a random card, and tells you what it is; you write it down. Then, the dealer puts the card back into the deck, shuffles again, draws another card, and so on.
Your task is to determine, after a certain number of iterations, which color deck the dealer is using. Obviously, you'll call the red deck if more ones appear, and the blue deck if more zeros appear.
Now, the question is – how many iterations do you need to perform to ensure that your answer is correct with 99% accuracy?
Once you've solved it, think about what this task has to do with recognizing maphacking. And why I consider one set of arguments to be sufficient, while another is not.