Excellent point. Let's eliminate the self-administered drugs before blaming a shot of the big pharma drug. That might provide some certainty to allegations of the Covid-19 vaccine as the cause.
If the entire team got the jab, only one fell over and died, so then you have a quantifiable ratio. But if nobody got jabbed, then you still have to find the cause. The question of causation is two-pronged: How many jabbees suddenly die, and how many sudden deaths of otherwise healthy people are of jabbees. And you also have to rule out any other possible causes in each case, such as drug use, bee allergies, etc.