Mr. Reen deserves better, what a sad outcome. I am one that should always have someone helping me write anything official, because i can clearly see myself naively writing myself into disaster, just like he did. I tend to see things rather dramatically and if i put myself in his position, i would have panicked and would want to make very clear the danger of taking the vaccine in the statement.
That's why it's important to at least try to never panic, it's detrimental to any action you are supposed to take in that moment.