Possibly - but - he does Ride for Great Britain.
He has won the GP Series and been recognised as World Champion, for Great Britain. It isn't his fault that he was brought up in Australia - that was down to his Parents - I had my misgivings at one time too. He is BRITISH and that is what counts. If he can help himself towards another Championship by not Riding here - then so be it.
It is a very long time ago since Great Britain could call the tune in World Speedway - I am afraid we are now among the 'also rans'. If Tai needs to move on to improve himself - then why shouldn't he?
I also read that Tai would return to Australia when his Career is over - having been brought up there, you and I would probably do the same.