Can understand the pissed off feeling within the Moz camp that YOR was leaked, but as I think someone had already mentioned above, with modern resources, its very hard these days to keep pretty much anything under wraps.
However, perhaps for the next release, they may consider this and perhaps adapt an approach that many artists and bands have done recently by officially allowing their album to be uploaded prior to the physical release on CD, vinyl etc. Ok, there is the sales aspect to consider, but again from reading the various responses to this thread, the majority of the loyal fans will go out and buy the album anyway, some several times on different formats, as well as the singles, b-sides etc..
I for one, will patiently wait the legit digital download, but looking forward to hearing it nonetheless.