He probably shouldn't have said "masturbation" or "prostitutes" from the pulpit, but aside from that I don't think it's such a big deal. It's good for priests to speak against impurity, so I think this sermon was good for most people to hear. It certainly needed to be said, especially in this day and age. Most priests use less specific terms to describe sɛҳuąƖly-related topics, and that's what Fr. Pfeiffer should have done in this instance. It speaks to his lack of prudence more than anything else. All things, considered...
still a decent sermon.