That’s an interesting remark. I’m not sure that the chair has any functions that can be delegated. The second schedule to the SSMA says that if present, the chair presides over general meetings. There’s nothing to delegate!
Speaking as someone who has very recently had to gently wrestle the chairmanship of a strata committee and OC from a strata manager who was used to using the delegation to run the various blocks they managed, all I can say is, there’s the law, and there’s common practice and then there’s real life.