My guess is that he was not a member of DAN America nor insured by them. Both are available to Canadians, but if he had simply been a member then there would be no need to beg funds for repatriation as that's covered in membership. I've read that some Canadian divers don't bother with DAN coverage if they never leave the country as some provinces provide socialized medical coverage that negates the need for coverage, but it becomes important to those divers who do dive outside of the country or even near borders as they might end up in US facilities after an accident. The popular feeling with US divers is "never ever dive without DAN." I didn't think that you would know since you live in Korea but wondered if others might know.
It's a sad loss to be sure and thanks for posting the link. Cremation and transport of cremains would have been much cheaper but it looks like they want to return his remains intact and are close to their goal. Sometimes I donate to people who lost their homes after not bothering to insure them or divers who didn't bother taking DAN or trip insurance, but well.
I'm not clear on that statement. Are you a native Korean? Which DAN coverage do you have? It is indeed important to understand what you have.