Yeah, even among the pretty experienced foilers here not many who will kite foil in an offshore, at least not up our way. Sometimes on those really NNW days with no swell you can get a run in, but can be a bit flukey.
Just too unpredictable if it's really offshore, if something goes wrong you're stuck off shore with all your gear and you need to get back through the surf with it. Most kite foil boards aren't know for their flotation and volume, and swimming through the surf with a foil, kite, lines etc. is not gonna be a fun experience!
Wing foiling where you have a board you can paddle home on is a bit of a different story. No lines to try and pack up on the water too, much less likely to end up in a mess in the waves.
W'lys have a habit of just switching off all of a sudden, or shifting 20-30 degrees suddenly without a lot of warning. Plenty of times we've done a sneaky winter downwinder in a NNW and ended up bussing it back because it decided to drop out totally or swing WNW half way down the beach, lulling down to 2 or 3 knots. Still worth a shot though

Especially if you're on the Sunny Coast, just head to the lakes. Weyba or even Cootharaba where you can just walk home if you run out of wind. I'm sure there'd be some spots down Bribie/Caloundra too where you at least can wash up on the shore somewhere!