Yes, absolutely they expect you to maintain LSALT until overhead the aid, under radar control, conducting visual approach or conducting a GPS/DME arrival - for your own safety!
Actually no, they didn't give it to me through TTMRA. Its potentially a bit of a trap that one. I had to do a renewal to get it put on my CASA license. Agreed, it's similar to flying DME steps, but there are a few very important differences. They can all be sorted out quickly with a check flight with an ATO. LSALTs are generally a lot lower than in NZ so in a lot of cases its not such an issue. Not being able to do a DGA by day is not such a big issue. You can either do a visual approach, of if the weather is really bad then its probably easier doing a runway approach than a DGA anyway. Not having a DGA endorsement may make things unneccesarliy cumbersome at night, at times.