I agree, homophobic comments and "jokes" are incredibly common at FLOSS events and create a really unpleasant and uncomfortable environment for everyone. One of the joys of writing this policy was the hope that it could be used to discourage gay jokes, and fat jokes, and racist jokes, and all the other crap that makes me furious and angry but happens so often that I can't fight it all by myself.
I strongly encourage conference organizers to explicitly call out sexual orientation as one of the sources of harassment they will not tolerate. It is included as one of the options in the policy.