I disagree.  The issue isn't homosexuality, it's stunted, unhealthy sexuality.  Many seminarians exhibit the sexual understanding of early adolescence.  When they struggle with celibacy after ordination their most familiar, most convenient targets are the young boys who might serve on the altar or hang around the schoolyard or rectory.  These boys are their prey, not because they're male but because they're there.
I'm not convinced the abuse has stopped.  There have been fewer cases reported of recent abuse, true.  But give it some time.  Often the abused are so repressed/depressed that they don't come forward until many years later.  Check back in 10-20 years to determine the abuse done in the 90s and 00s.