Going overseas for training is a great way to learn from a much bigger experience base. CASA should encourage it, not make it hard
Another side of the story however: Fact: Australian GA pilot bought a 737 type rating in USA. Very compressed course compared to third party provider in Australia. His plan was to go to Indonesia where rumour was that low hour (1000 hours TT in log book) pilots needed on 737 Classics. News filtered down from other candidates that the sim assessment in Indonesia consisted of all manual flying with no automatics such as FD and AT.
He decided to get some practice first in Australia but struck trouble as all his type rating "training" in Miami was almost total automatics and not even one circuit. Even raw data manually flown no FD, no AT ILS never happened. This really showed out
In other words he was never going to get through the Indonesian carrier's sim assessment because he had only been trained to fly on automatics. . Fortunately or unfortunately (depending on one's point of view) he never got to Indonesia since the Indonesian carrier moved the goal posts revising the min requirement to 500 hours on type to satisfy the Indonesian pilots union.