If part of the appeal of your comic is making fun of certain cliches, the people who enjoy and get those jokes need some familiarity with those cliches. In fact, the more familiar with it they are, the better chance they'll pick up on clever and funny commentary. So if there's an over lap, that could account for it?
But also, while it's okay for you not to like something, try not to be too judgemental of other people liking it! I have tons if guilty pleasures! I have favorite cliches! Indulgence can be stress relief, and not everything I want to engage in will always be super deep, artistic, or clever. Sometimes fun is enough. Or any number of other pleasing traits.
Their relationship with your comic, and what they get out or it, has nothing to do with their relationship with another comic. Try to worry less!