The files are simply in the wrong hands, overall. None of the current servers that are being hosted are hosted by people that give a duck about the game. In order to hold a proper Private Server up and running you at least need to have passion for the game itself, the way it works and all it has to offer. What exactly have these server's provided their players, or "customers" if you will, that is anything remotely close to being beneficial or enjoyable ?
They don't care enough to bring the developing of the game to a whole new level, thus, their servers grow boring and eventually people will simply wound up quitting, which has been a proven fact the past few months.
Additionally, considering BOIGenesis got the new Files after the update, it's safe to assume that there's simply a leak from PWE, and regardless whatever anyone says, I believe that's the case. Why? Because I believe that a multi-gaming company such as PWE wouldn't be stupid enough not to upgrade their security after being hacked in the past (FW, RH, PWI, etc..). And needless to say, they do have the money to do so.
It's sad to see people selfish enough to not release the files. It could be a great addition to the developing section of RagZone and aboveall give the chance to host a server for the people whom actually have a passion for the game's features, and whom cares enough to expand it on their own terms.