Gidday 4Dogs,
Bet you use Jepps (like me).
The MAPt for an ILS is indeed the intersection of the Glideslope with the DA (or DH/RH). I don't have my Jepps with me but if you take a look at the AIP stuff, the MAPt on their charts have (LLZ) at the MM/equivalent DME distance. Jepps omit that information on their charts, which can lead to uncertainty.
Sure, when you fly an ILS in anger, you will get to the DA around the MM (actually past it), but in the strict sense it still is an altitude/glideslope thing as far as I'm aware.
To clarify, take a look at 16R or 34R ILS at YSSY. If you were to go around at the MAPt depicted on the chart (LLZ), assuming you are on slope, then for 16R you would be at approx 350', and for 34R, 480'. The DA for 16R is 220', and for 34R 290' respectively.
Hope this helps.