For his parents to watch him play in Adelaide I'd assume they'd need to fly (6 hours by car).
There is an airstrip at Wundinna but flying would be by private aircraft.
I'm not sure a move to Adelaide would make it all that more convenient for his family.
BTW Travis Boak is a friend of mine. He misses his mum Chicki terribly given that he lost his dad to cancer when he was 17 yo.
Trav is incredibly loyal to Port and has never contemplated moving back to Victoria.
Port have been terrific in regards to Chicki - flying her and Trav's sister Sarah to Adelaide at any time.
I suspect the MFC has, and will continue to be, supportive of Harrison in regards to catching up with his family.
The events of Oct 17 last year were a beat up by Ch9 Adelaide - click bait.