No one said that the SSMA makes sense.
The actions described are fully in compliance with the Act.
Whether it’s morally correct is questionable.
If I were that committee I would use this method judiciously.
You mention that an agenda item affects you. The committee cannot make a decision thst adversely affects you, and it can be challenged.
Also, if the motions are vague, it works both ways. Vague and ambiguous motions could be challenged if there is the possibility of multiple interpretations.
Why not try to get on the committee at the next AGM so you are in the loop.