What happens is they do defer to the expert. The expert is a plant by which ever lobbiest chose to sponsor the bill. I’m had correspondences with my government about fields I am intimately familiar with and their arguments about technical feasibility were given to them by their Big4 “expert”. The problem is I know the field well enough to understand their expert is simply giving the opinion they were paid to give and the technical feasibility of the proposals take a back seat to the political desire of the people pushing the proposal.