But this also makes sense from a PR perspective because according to American political polls being an atheist is "worse" than being black, gay, a women, etc. It's apparently largely unforgivable to be godless.
So, some may be surprised to learn he's gay, but then take some solace in the fact that he still praises the same god they do. In a way this is the perfect way to assuage the exact audience this revelation might offend because, you know, God loves all his children.
This really won't be a big deal. Some extreme groups will make some noise, but that's about it. I was in the Marine Corps when they repealed Don't Ask, Don't Tell. Everyone thought it'd be a big deal. They repealed it...nobody cared.