It makes sense to me.
"Port" – the club
"Port Power" – the AFL team
"Port Magpies" – the SANFL team
But I get why many people manifest symptoms of PTSD (Port Traumatic Stress Disorder) when see or hear it.
Do you say West Eagles or North Kangaroos?
I blame the stupid marketing of our club in 1997 though. They started this s**t and quickly scrapped it a year later.