The role of the opposition is to scrutinize the government, not to inform the public of what is going on. Only the latter would expect “being right”. In a perfect world the government will always be “right”, so the job fundamentally comes from a “wrong” angle, using “wrongness” as a tool to force the government to explain why it is the one that is “right”. If the opposition is ever “right” then you have some serious problems on your hands.

But, let’s say you’re on the money that Old Pierre there is confused and thinks it’s his job to inform the public of what is going on, where “being right” would be an imperative. In that case he cannot talk about it either way. So, why would he bother to go through the effort of obtaining the clearance?