Partial reversion of changesets:
https://www.openstreetmap.org/changeset/137773356
https://www.openstreetmap.org/changeset/140660737
https://www.openstreetmap.org/changeset/141445146

I've added access=discouraged to the way.

This has been discussed on the talk-au mailing list.
Reasons for reversion:
This is still visible on the ground (checked by myself 30 November 2023)
The track is not formally closed.

The actual reversion was delayed as there was the possibility of NPWS joining the discussion on the list, but unfortunately this never eventuated.

See also:
https://wiki.openstreetmap.org/wiki/Why_can%27t_I_delete_this_trail%3F