It’s understandable that this person has this much influence, even though it’s not an elected position.

Unelected parliamentary bodies are supposed to support transparency, fairness, and debate - they're not supposed to take a prominent role in shaping policy and communicating it to the public. I think it's good that the PBO issues reports from a supposedly non-partisan perspective, but I don't think it's good how little oversight they themselves receive, as this incident reveals. The Government and Opposition (or all parties) should get advance copies of the PBO's reports for public consumption, and the published reports should include that commentary from the Government, Opposition, and/or all parties