I suspect you are right, if he had the vaccine. And I think the probability that he had the vaccine is pretty high. Now to add another complication to diagnosing it as a vaccine side effect is the question of insurance coverage: is it better to not tie it to a “experimental treatment” as far as health insurance coverage is concerned? So, if that is a factor, even the victims of vaccine damage might not want it connected to the vaccine. That is another reason why I believe the truth will never be known. Too many conflicts of interest.
You have hit upon an important data point! Do insurance companies pay for health care and treatments if the hospitalization and death occur due to an experimental jab that the fed has already given the big pharma experimenters a ‘not prosecutable’ pass for? If the docs and hosp[itals want to get reimbursed, they will lie like any criminal will.