I am with Professor Harrington in this regard: Parliaments make big decisions, and parliamentarians are trustees of the public interest. In that trustee function, though we need education about this, I still think the beginning is that a Parliament could make this kind of decision on its own, as long as it respected consensus and process.
Could this be ramrodded through under time allocation and so on? I think that would destroy it at birth. However, should this committee reach a consensus, can that be reflected by all parties, or least a significant number of members of Parliament if it was not an all-party consensus? Yes, it could.