I think its more indicative that the MACP cannot cover each and every Type that the MAA through the six-stage process.
The design is pretty specialist and whilst we are short of the capability, I dare say some level of risk acceptance (fully endorsed by our Lords and masters it seems with legal repercussions) is necessary, otherwise nothing will get done.
The point is, there IS accountability and risk acceptance, which is the big difference in my view between pre and post haddon cave.