I seem to recall reading this or a similar story before.
The conclusions seem to plausable though others might be considered.
However, I personally think the only surprising aspect of this is that the burial was done in this way. My own investigations of ancient human cultures, which I accept lack credability with some as I did these without the supervision of a university, suggest that not only were non-hetrosexual lifestyles common, they may have been important for the survival of the community, especially among feral communities.
Sadly, it's a bit too early to make any near definate claims though.
