I'm certainly not going to be feeling outraged by medical records disclosure when I'm dead. Do with me what you will when I'm gone--I care more about my experience when I'm alive.
Hypothetical situation: how would you feel if your medical records and used to calculate health risks for your children/other family members and refuse specific insurances (or make them more expensive)?
Non hypothetically, if your parents have a genetic condition that can be passed onto their offspring, in my country you are checked against them to try prevent them or catch them in the early stages.