The gate at the start of the track is there, but open. The track is all OK but very very sandy for a long section along the initial straight section. Best that you have a 4WD, or at least a AWD if you are going to drive the track. Park at the left hand turn. The track deteriorates significantly past the L turn.
The Guidebook/the Crag probably need updating. The track has been fixed up since the last big flood/rain erosion occurred; and now is obviously open. It was previously locked shut. But please drive carefully to minimise track damage and stay in the existing ruts. Car-pool to minimise the number of cars that drive the track.
Andrew's comments are still very much valid - climbing was nearly banned due to the concerns of the adjacent property owners. Don't give them reason to complain to Parks Victoria.