My take from reading the blog post is that this person is understandably disappointed, scared and traumatized by past treatment failures. He described being scared to even try sleeping, always fearing the next shock or heart attack. Also some of the treatments seem to have been exploratory or "just in case", and then failed. That leaves a psychological scar.

It's very difficult for someone who hasn't experienced this (like me and, I guess, you) to put themselves in the other person's shoes. I think I can understand the decision he's making, and it doesn't seem to me to have been taken lightly.