There are things we say that are untrue that are not sinful.
Some are even heroic.
Lila Rose and her allies knew where the predators lurked and intervened to expose them and save the innocent. So did the German officers who schemed to assassinate Hitler. So do policemen who infiltrate drug gangs and soldiers who use deception (instead of torture) to interrogate terrorists. If we can find a better philosophical understanding of language, one that allows for the defense of the innocent instead of lumping it in with sodomy and adultery, I would call that a "win" for the Church and her credibility. Unlike Tertullian and some of his modern imitators, I take no satisfaction in believing what seems absurd. Yes, there are mysteries like the Trinity and the Eucharist that resist our rational scrutiny. The philosophy of language isn't one of them