What I have yet to see is any sort of justification for why it is ok to push personal risk onto other people, many of which have no idea how bittorrent works.

If you're going to use bittorrent for works that are protected by copyright, sharing in a small amount of risk is how the protocol works. Technical changes that actually reduce risks are fine; moving risk around is merely hoping someone who is ignorant of the technical details can be the patsy.