You're assuming that women want to find a relationship on a dating app. Tinder is essentially porn for women, where they get all the attention they want without doing anything for it. It's primarily entertainment. Using the app itself is the goal, so more interaction and more options are good for attracting a female user base. Of course this female user base has no interest in actually dating the male users and is thus worthless if your goal is matchmaking, but this is also good for the app since frustrated male users pay for premium accounts while happy couples uninstall the app.
