Aryan's father, Dr Anjan Banerjee, said their family was pleased Aryan had been vindicated through the report.
It showed it was not the nine-year-olds actions, but the "environment at the school that led to his death".
When asked if he thought the report would help bring his family more closure, Dr Banerjee said he was not sure yet.
"It's too much to take in at once."
Dr Banerjee declined to comment further.
In his report, the coroner stated the school caretaker - whose name is suppressed - was conducting what he thought was urgent maintenance on the toilet door, in May last year.
While repairing the lock, he returned to his workshop for what he said was three to five minutes, and left the block unattended, with the toilet door open, and mechanism incomplete for a period of time.
During this period of time, Aryan had gone to the toilet, and when he realised he was "effectively trapped" decided to escape by climbing out the window.
Because of the manner in which Aryan become stuck on the window, neither the caretaker, nor his teacher were able to see him when they checked the toilet.
Mr Scott disputed the urgency of the maintenance, and said the caretaker could have taken measures to block the toilet off - such as placing an out of order sign on the door, or blocking the door with available cones and tape.
The caretaker also could have informed the teacher of Aryan's class - who used those toilets - of the situation.
The coroner stated it was "quite foreseeable" someone would become trapped in the toilet, adding this had happened on two previous occasions - one involving the Principals own child.
In his view, Mr Scott said it was "entirely foreseeable" that a child would try to exit the toilet in the way Aryan had.
Common sense indicated the most likely first response would be to bang on the toilet door and call for help, he said, however if help did not arrive any student "or for that matter anybody at all" would look to escape as Aryan did.
"It was just a matter of how long it would be before that happened," Mr Scott wrote.
He stated there was no guarantee the outcome would have been different if Aryan had been found earlier, "but it might have been".