"And now I see, as if through a glass darkly." Paul gets a glimpse into God's wisdom but admits that he will never know it all. Even his own conversion was not instant. Yes, he was knocked from his horse but, he had to be nursed back to health (grace?) by Ananias. It was not instant. 
Second, the Church pounces on all sins pelvic (except their own)  and yet I wonder if the "challenge" isn't to gay people at all (because they are not disordered but God's own children).  Rather the challenge is to the hetero to "judge not lest you be judged" and to "love your neighbor (all men, everyone, as told in the Good Samaritan) as you love yourself". We are never told by Christ to love only those who are just like us.
The folks in Twelve Step recovery groups offer the idea of "spiritual progress, not spiritual perfection" similar to that which is taught in the parable of the Prodigal Son. We could take a page from their book.