This is an excellent advice - it will force the discussion without looking adversarial. One may also ask for expected deliverable, such as a decision, or a list of questions to be circulated afterwards, etc.

It is generally a useful practice to ask about the expected artifact to be produced from any activity - it anchors the expectations and provides focus (narrows the scope).

If you’re really brave, or really desperate, have a chat with the organizer the day before and ask them which problems are looming over them and see how you can contribute to a solution - the meeting may dissipate by itself and you will gain an ally.