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Not really, although it will become more common. Most people sacrifice aerodynamics and weight for durability and all-weather handling. It depends on the course too. Oz is relatively flat so aero is possibly more of a factor than weight. But you've also gotta be able to hang on when there's gusting winds around. Lighter riders can get away with sillier wheels... until the wind picks up :)
I was riding a disc and using an 808 for LEJOG record attempt. Jay Petervary used a disc wheel in Route66 race. The Hammer guy (Jason Lane) who came second to Mike in TABR used Zipps (808s I think). Lael used C64 Spesh Roval wheels.
He can do what he wants with his chain. Pretty sure he's 1000 times the cyclist I'll ever be.
Is that a fairly common wheel choice for these sorts of events and things like Paris-Brest-Paris etc?