no-one can be convicted in a civil lit matter .. apportionment for liability or vicarious liability applies .. the percentage has been decreed - the amount for which is yet to be determined .. all of which can be appealed.
For those that are minded to .. set up a family trust to hold assets. Assets of a trust (which is not a legal entity ie cannot be sued in it's own right unlike a person or a Pty. Ltd. business) .. are then for the benefit of beneficiaries named in the trust deed .. unless one of the beneficiaries is declared bankrupt - then a bankruptcy trustee can lay claim to that persons benefit under the Bankruptcy Act of the jurisdiction you live in ..
The judgment decision is in 3 parts on the W.A. Supreme Court site if you're into a little bit of light reading!