Yet it’s all still deeply impersonal. I would have thought it would be much more effective for the one whose questions are being rudely ignored to deliberately

Yet it’s all still deeply impersonal. I would have thought it would be much more effective for the one whose questions are being rudely ignored to deliberately make it personal in response: to bluntly impugn the honour and integrity of the other, politely offering grave insult to match the insult received by the ignoring of the question—the sort of thing that would probably have led to a duel in bygone ages. (I wonder if such bodies have any specific rules against referring to someone as “the dishonourable minister” or similar, or anything about means of address in general.)