This whole issue speaks to how far society has come on acceptance of LGBT relationships. 10 years ago, if a fundamentalist church put up an anti gay video, no one would have cared. Watchtower, being as usual, entirely tone deaf, didn't catch that it is entirely unacceptable and bigoted now.
Just like if your religious belief is that white people and black people shouldn't marry- that may have been considered a private issue 50 years ago. Now it's just considered racism. No matter what color of religious bow you put on it.