I agree that you should always verify what you hear on the internet and I am always skeptical of this kind of thing.
Can you clarify one thing for me? What is "Bookface?" 
Sorry, that's what I call Facebook....just a play on words.
Yes - also Haird do you have a link to the story?
I have the info on the Indian Motorcycle forum discussion
about the pictures, story and investigation on bookface but since I don't have an account there, I don't go there.
Like I stated, this is all info I derived from reading the various posts concerning this topic. There's another going around about the side covers not being mounted correctly (design of the rubber grommets and subsequent mounting) but that's another where someone is trying to convey poor design/manufacture (read litigation) when really it was them not replacing the covers securely after service.
I did find this post a very good, average, response to the neck failure. It's more investigative than accusing. Again, this is what I derived from the pictures, too.
Without knowing the story behind that particular photo, here is my assumption.
It doesn't look like it was a neck failure while riding. No dirt anywhere on the break areas to indicate long term. No other damage on the bike, wheel, motors, bars or fender to show it failed while in motion. There are marks on the side of the fender consistent with it going under the front frame of the trailer. And the body is still upright. It would typically have to be dragged onto the trailer on its side if the front wheel is seperated.
I think it was in the trailer already when it broke. Either tied down way to tight over the neck, or not enough and the bike came forward on the trailer during braking or a separate collision. Or a combination of both.