The new version of section 33.1 doesn't add anything. The Supreme Court of Canada had already established that the burden of proof is on the accused on a balance of probabilities to prove that they were in this state of extreme intoxication. The revised version doesn't add anything.
As Professor Grant pointed out, if the Daviault standard of proof is not incorporated into the new section 33.1, there is a risk that some judges will drop that. That was the first point in her presentation, that we might want to actually have that rearticulated in the section itself.