I see this as a for-public-consumption message. They often soft-peddle their beliefs in the interests of not scaring off the non-JW visitors who might be at the District Convention™.
There has been so much in the news recently about bullying occurring in schools of GLBTQ kids to the point of their wanting to (and sometimes succeeding to) commit suicide. Youth are one of their prime targets - kids seeking to rebel against their parents' rules, explore different experiences, etc. To tell a kid who identifies as "different" from everyone else because of their orientation, that they will be accepted regardless of their sexual orientation, is - to put it quite bluntly - bait to these vulnerable individuals.
To me, it is a disgusting ploy to lure in fragile personalities with a promise of unconditional acceptance, only to switch to a message that promotes unequivocal self-loathing for the person they are once they have been ensnared.
Then again, with the new "research" into the born-this-way nature of certain pedophiles, maybe the message is for them too.