Steady Sam,
Curiously enough, our 2nd SM has followed this practice of electing, or rather nominating, the officers at the AGM, rather than at a separate SC meeting. When I raised the matter the first time, I was assured that this was for admin reasons, as the Strata Hub reporting was due soon. The 2nd time, no response. The agenda does not include an item for election of officers, but nobody seems to be bothered. The Strata Manager, acting as meeting chair, merely proceeds as he wants.