I noticed the same with the Nerve range - no carbon models (in aus or the UK, but the range is huge over there).It's pretty awesome - the prices came in roughly as expected - and without the Australia tax!
The only thing I don't get is why the long waiting time to get some sizes/models - even if it's shipping from Germany why would it take until April to get the bike to Australia. My guess is that the bikes simply haven't been built yet as it's Euro winter and no one is buying over there. It's a shame as it means missing the whole Aussie summer waiting for the bike to arrive.
On that note, I wonder why all of the models aren't available (eg Strive 7.0 AL) - if it's shipping direct from Germany what difference does it make to them which one you are buying? It's not like they need to have a large warehouse here to keep all of the possible models in stock (not at this stage anyway).