Gerry asks in the comments:
Surely the National Executive could make an executive decision on behalf of the membership to implement one-member, one-vote now.
Campbell Clark says surely not:
This point comes up every time there's a leadership race, and lots of people, Liberals and otherwise, agree with you. It's too late to change it this time because it is written into the Liberal Party constitution. (Although some argue they cannot really afford it.)
He also has this bit of good news:
The Liberals are not swimming in cash, but their debt is not debilitating either. They'll be able to finance reasonably ordinary operations and pay for the next election campaign