I don't think it'd be that hard for them to work out the 'who' if they really wanted to, of course maybe they just plain know. I doubt many would be in a position to take those pics. But we can leave the paranoia on that other forum please (yes I've read it) and they're perfectly entitled to take that approach.
I'm sure if Ford had a issue they'd contact this forum and let us know and Russell would be up front about that. Personally I'm with jpfs1, I'm kinda in the mood for the reveal