Give the guy a break.
People make out like Johansen's some PFA type who set off for a rally in his home-built-special, missed the off-ramp and found himself in the Antarctic.
He's flown round the world 3 times and over the North Pole with no problem. His airplane is an RV-4 built exactly to the designer's specification and standards. Australia doesn't have the Us Experimental Category so his airplane's passed the same standards as a factory built model.
Some US and NZ rule-gods are being dumb and stubborn.