You're quite right. As with a Scout's sexual orientation, the subject just doesn't come up unless brought up by the Scout himself. I guess it is kind of a 'don't ask, don't tell' set up. I think all of this stems from that case where the Scout made a public stink about it, and the BSUSA kicked him out.
Boy Scouts talk about 'reverence', but I've never noticed any requirement for any particular religious belief. The Scouts offer awards which could be earned for many different denominations. There are several Indian boys in our son's troop who are possible Hindi.
This is just another attempt to try to diminish the influence of the Boy Scouts nationally. Somehow I don't think folks outside of the media are going to take the opinion of Steven Spielberg very seriously