London City does have a high angle glideslope ILS capability sure - but it is limited to a very few types of jet equipment and some turbo props. There are no (as far as I know) B737s or A320s capable of using it. There is a special 'steep approach' mod for A318s available that allows BA to use it. I don't know what ERJ/CRJ types (if any) can use it, but there is a great youtube vid showing a 'memorable' landing there by a BAe146/RJ, so I guess they use it too.
As for MEL/SYD not having autoland capability - well that's just nonsense too. Unless the reference was meant to be to CATII/III, most ILS equipped runways in Australia used by airlines can be used for autolands. And MEL even has CATIIIa capability on RWY 16.
But back to the case in point - OOL - QF developed a couple of RNP approaches there a few years back. I'd guess that they're using them to advantage when they go in there on crappy days. So, yes it is frustrating that airport operators don't spend money on infrastructure, but it is just as frustrating that airlines don't spend money on sophisticated equipment options and training that would permit them to use low-minima RNP at non-ILS airports.
Otherwise, just follow Xanadu - if they can, anyone can...
