Those who read my posts will know that I don’t curry favour with Strata Management Companies, but I think you’re being a bit hard on them with regard to the advice provided to your neighbours.
Most Strata Managers will happily convene Annual General Meetings (AGMs) in the evenings or even on weekends, but they’ll likely charge the Owners Corporation for the use of their rooms and/or their time, which in my opinion is fair enough.
Advise your neighbours to check their Plan’s Agency Agreement with their Strata Manager, where they’ll almost certainly find a schedule of fees including those for meetings held after-hours. They’ll then be in a position to assess whether meeting convenience is worth the cost.