Dick,
The same ASA guy who was looking after NAS, is the proponent of SDE. In fact I am at a loss to think of one project that this individual has been involved in that has actually come to fruition, or he has stuck out to the end. A nice suit and the ability to talk w@nk words will take you far in ASA, coupled with an inherent 'radar' that tells you when to desert a sinking project.
On the Benalla post you were pushing that it would be a 'simple' matter to enable The Lowest Safe Altitude (LSALT) alarms across radar airspace and controllers would have the responsibility to monitor IFR approaches OCTA and alert the pilot/s if they went offtrack (Route Adherence Monitoring) or below the LSALT. At present, we do not have the people or the technology to do this.
Please re-read the posts, as was said, we are not against change. However you need to resource it properly and the things that you believe are simple or easy to do, tend not to be.