It's a slight change from years ago when they basically taught that homosexuality was a choice. I remember an Awake or Watchtower article by a former homosexual who claimed he used to enjoy promiscuous sex and that it was the thrill of the forbidden, meaningless sex that was the attraction, it wasn't that he was born gay. He became a JW and was supposedly happily married to a woman at the time the article was written.
This idea has pretty much been debunked in society, most people even within the organization, know that it is not a choice, so now they are saying that a person might have an inclination to homosexuality, but they can still choose to be celibate. Of course they have a right to believe and teach that, but when you are telling people they must live without sex, intimacy or love with another, then that is not really an acceptable choice to most people.