I don't think we can accuse Fr. Martin of bald-faced lying when he encourages dialogue. I think there are many questions that remain to be discussed by people of good faith, regardless of their orientation, including: 
1) what are the limits of human sexual behavior, of any orientation, in an era of casual sex and hookups? (Is all behavior between consenting adults consistent with the Gospel?)
2) do those limits derive from God or from historical taboos? 
3) if we agree that our society's approach to casual sex is increasingly disordered, is promoting sacramental marriage for all believers a viable option? 
I would be very interested in an open discussion of these and similar questions, instead of focusing on appropriate and inappropriate language.