Dean Anson Sanderson's loved ones say the 50-year-old father of three's death was avoidable and should represent a "line in the sand" for safety improvement.
Mr Sanderson - a mine project manager from Adelaide - died after plunging up to 25 metres through a rainforest canopy from the zipline in far north Queensland on October 22, 2019.
His wife Shannon also fell from the zipline at Cape Tribulation, 140km north of Cairns, and was seriously injured.
They had taken the tandem zipride tour during a "bucket list" holiday.
Family and supporters wept on Tuesday as statements were provided by Mr Sanderson's daughter Jessica Sugg, father Roger Sanderson and sister Emma McRae at the conclusion of a coroners inquest in Brisbane.
His daughter told coroner Wayne Pennell that her father's death was "not a freak accident".
"This was a tragedy waiting to happen," Ms Sugg said.
"Dad's death was avoidable, the immense pain and suffering to those who knew and loved dad was avoidable."
The inquest has been told the company operating the zipline, Jungle Surfing Canopy Tours, did not register its course design changes or employ qualified staff for construction and maintenance.
"You don't expect a tragedy like this to happen in Australia," Ms Sugg said.
"You expect subconsciously that engaging in an experience like ziplining that you are safe ... you assume they have gone above and beyond what is required."
She called on her father's death to be a "line in the sand" to start safety improvements.
The stretch of cable where the Sandersons fell used wire rope grips at its end points that experienced "total failure" during their ride, counsel assisting April Freeman KC said.
The end points were not properly maintained and tightened using a torque wrench as required by legislation, the coroner heard.
Ms McRae said her brother would be missed forever and the pain of what she called an avoidable death was "unforgivable and cruel" like no other.
"I feel so cheated and blindsided by what we have heard at the inquest," she said.
It was gut-wrenching that nobody had previously been held to account over her brother's death, Ms McRae said.
Mr Sanderson's father Roger gave a statement via videolink and thanked inquest staff for being a "shining light" on matters left unresolved for too long.
"I listened with disbelief and frustration at the evidence presented at this hearing," he said.
Mr Sanderson's father said he had to leave the inquest at a prior hearing to cry in anger and anguish and say things he could not repeat.
"We submit that those who failed to act with appropriate care, accountability and humanity should be recognised as falling short of the standards the community is entitled to expect," he said.'
"Shame on all of you."
The coroner said he would not be able to return with his findings before late October.
"I know the family may feel they need to get closure soon but I need to get this right," Mr Pennell said.
"Dean deserves to have this right."
The family declined to comment as they left court.
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