I agree with you that it is just so stupid.
How people deal with death is wild to me. When I was still in college the brother of an old high school friend died so I received an invite to the funeral.
Keep in mind this was 30+ years ago. My old buddy, who was working a retail job went 25,000 USD in debt to fund the funeral. It was absurd how much he borrowed. By comparison two years later when I graduated college I was 23,000 in debt.
I also agree with you, when I die, take as many organs as you can, use the left overs for medical students and after throw the rest in trash, use it to feed the fish, whatever..