I'm going to say it out loud, and am happy to be criticised for it.
I never liked the hood on the current smock. Tactically I saw no use for it as on the ground the soldier was going to wear helmet or bush hat. In my experience it became a way for people to go about without headgear and not be noticed. If worn on duty it reduced situational awareness greatly. Ideally the hood should have rolled up under a collar. A removable hood is just something else that is going to be lost.