I understand what you mean but homosexuality is not a trivial matter in Christianity, to God, to the Catholic church, or to adherents of the faith. It's one of the big ones. Outing homosexual priests does not exclude the people doing the outing from also working to address other issues, should they have the resources and the inclination. All other important aspects of the religion don't fall to the wayside because there are hungry people in the world. The poor will always be with us.
Do you really feel that, if one takes homosexuality to be wrong, its really a big deal to God, compared to people starving or lacking basic medical care while others are rich, or people shooting at each other? Also, why do people make such a big deal about gay sex being wrong, when far more people, including many Catholics , are having sex outside of marriage which is equally against the teaching of the church? What is "specially bad" about gay sex in that context? To me, it'd be a cruel God that creates people who find themselves to be gay and then condemns them for being something they did not choose for themselves. It seems to me, since God is caring and merciful, he must make allowances. Which leads me to question the church's official teaching on homosexuality. I have friends in both camps BTW - friends and colleagues that are gay, and Catholic friends who lean towards traditional/conservative. At least 90% of married Catholics use contraception, so there must be a lot of devout Catholics who have decided the church has got it wrong on that rule for example. It is such a mess. A friend years ago wrestled with this as he came from a traditional Catholic upbringing and then discovered he was gay. I think it comes back to "judge not lest thy be judged".