DY - I think the fact that it's their 'featured video' this month, on their website which is designed for public consumption (that is true, right?), plays into it. It's also been uploaded to youtube. And the WTBTS knows darn well that it would be. The Netherlands has a much more secular society than the USA (as do most western lands), and gays are actually equal.
One of the concerns voiced, is this: What does this video do to a 5 YO whose orientation may be gay? They will be taught a core belief - that gays will be destroyed at Armaggeddon. Now, fast forward a few years to puberty - can you imagine what is going on in that poor kid's head? Knowing they are only attracted to the same sex, yet having to suppress that, and pretend.
But WAIT! Jehovah *knows* what is in your heart and mind! So, even if you are chaste, or marry and walk the *straight* and narrow, Jah will KNOW you have homosexual thoughts. Teens have a hard time anyhow - imagine also bearing the burden, that how you are made, will never be acceptable to Jehovah.
It's a real concern, even if you accept the doctrine, or believe that homosexual acts are wrong. It is fact that sexual orientation is not a choice. Puberty is hard enough, let alone being a JW (guilt about everything). The guilt was bad for me, but for my gay pioneer buddy (no, we did not know he was gay before we found the suicide note), it was too much.
That's not an attack - just explaining why the community finds indoctrination of such young children, to be a bad thing.