There just is not a good, or even stupid, reason for this to have been done.
Well, obviously there had to be a stupid reason, although I can't imagine what that might be, but someone with no knowledge of how a snare throw-off functions decided to remove it from its original position and mount it as if it were a butt plate. He might as well have just mounted an eye bolt into the shell and tied off the snares. Some people shouldn't be allowed near sharp objects or tools.
Mike