Mrs Golightly said Ms Arnott was still deeply affected by Dalu's death.
"She's devastated by it still, two and a half years later," Mrs Golightly said.
"Sharon would also like to thank Martin Ferreira for his efforts in trying to stop the attack, she's deeply grateful for that. He put his own life at risk."
Mr Shortland said the inquest had illustrated the complexity of the legislative framework and regulatory bodies required to work with parks like Zion and others, with three different legislations and various bodies involved.
"The Biosecurity Act and the Hazardous Substances and New Organisms Act are proactively enforced while the Animal Welfare Act and Health and Safety in Employment Act are reactively enforced.
"Regulatory reform should be considered on a number of levels from changes to existing legislation to potentially forming new legislation," he said.
Mr Shortland found that Dalu died when he was attacked by Abu in his enclosure, with the cause of death a combination of asphyxia/suffocation and from the results of the wounds inflicted by the big cat.
Zion Wildlife Gardens was placed in liquidation in 2011 and sold to new owners in February 2012 who operate from the premises as Kingdom of Zion. The new owners were not involved in the running of the park at the time of the accident.