The captain involved in the pitch disconnect on approach into Sydney (and pulled the controls without a proper take over) was an Aussie. The captain that flew the low approach into Moranbah, together with his FO, was an Aussie. The crew that landed on an occupied runway at Moranbah were both Aussies too, can't blame foreigners on the radio for that one either. These were the three big ticket ATSB reports, so don't let facts get in the way...
Don't dilute this argument against 457 pilots by saying they're ****e pilots. Some are average, but so are Australian pilots, some who would also initially struggle heading overseas.
Don't blame the 457 pilots for taking the golden opportunity to fly in Australia. Blame management for their ****e decision making. Skywest rushed the guys and didn't have proper resources in place. Skippers are doing it to avoid training costs.