In 1985, when section 15 came into effect, a House of Commons committee that was tasked with examining the implications of section 15 cases noted that there were basically individuals up against government departments and agencies. That committee concluded that there were barriers to individuals pursuing section 15 litigation.
What we have seen in terms of the litigation around section 15 since 1985 is that in many cases it has been advanced by groups, not individuals. Perhaps you could confirm that the vast majority of cases that were supported by the court challenges program were groups and not individuals.