Look at all the scuba deaths that are happening, it is the certification classes that are failing to keep the only important thing in scuba, Monitor your gauges, After several hundred dives, a diver will be automatic system, by system is know exactly how to do a dive, any dive and make it to the surface with plenty of air.
It appears to have been a severe DCS hit. Was this because of this dive or this dive + the previous dive?? From the article, it would lead you to believe that dive 2 happened shortly after dive 1. Monitoring your air isnt the only "automatic system" for a competent diver.
Does not matter, parent, instructor, buddy, you are responsible for you underwater. It is up to you, if you want to dive with someone and be apart of there dive, to enter and return the water together.
I agree that every diver in the water is responsible for themselves, which includes the risk you put the divers around in, along with the response you receive when the poop hits the fan. I have been involved in a similar situation in deeper water, with a completely different result. Knowledge is power and acting corectly and quickly can change the outcome. I see a lot of missed oppurtunity for errors just by reading the article.
Even animals with gills cannot overcome the physiological aspects of pressure gradiants, so it doesnt really matter if you grew up in Key West, Atlantis, or Withita.