fmf is absolutely right. Many JWs, even now, don't equate homosexuality with other sexual "sins" committed by hetrosexuals. It invokes a greater sense of revulsion and contempt. I have heard some incredible vitriol directed towards gay people over the years and it still happens now. There is still a genuine homophobic response by many, old and young, towards interaction with gay people.
Of course this is nothing new and compared to what might be said about homosexuals in private or from the platform, this video might appear fairly tame and indicative of much of the low level rhetoric common to many conservative Christian fundamentalist organisations.
What it is doing however, is feeding the machine, oiling the wheels of the intolerance and fear that will grow over time and can become a real vitriolic hatred. When Witnesses are encouraged to hate what is bad they are left in no doubt that homosexuality is bad. Only a relative few stop there and don't go on to lump homosexuals in the category of badness that is to be hated.