As far as I can see, the only benefit of the software is from legal point of view. Using the software requires the volume to be mounted, which means that data on the volume could be accessed/copied away, no special software required. My guess is, that in some countries (or most, IANAL) law states, that data copied from encrypted volume can't be used as a evidence, but original data can. In those cases the software would allow using of the data.
As far as I can see, no cracking of encryption actually takes place.