I figured it out: we are not represented. Even the company, e.g. the current directors of the company, does not want to defend, because they won't lose anything from the company's losing the case, on the contrary, they might win something if the company is convicted fraud.
Besides the current shareholders, the only ones who would lose something are the former executives, who were already removed from the position, so that they can't defend representing the company.
It is very difficult to understand how the OSC could have made such a stupid mistake to illegally order Allen Chan etc. to step down, if you don't know how important it is to remove them before the company can be controlled by people who do not want to defend the company from fraud allegation.