Great question
The shortest and best fuel saving track is to right base for runway 32. It would have required the 737 to make a left turn away from the Tobago.
The Tobago pilot naturally believes the 737 will take the shortest route.
But the opposite happens. The 737 crew say nothing and head for the longer distance to left base and towards the Tobago.
Then the ATSB suppress the communication transcript even though the Tobago pilot claims they have it completely wrong.
And there is no personal attack- you are anonymous!