[2aProtectsTheRest]

"How about a glass of water to a thousand 32 year old men."

Sure, and when some of them die, do we blame the water? Or do we examine each case and look at what the ACTUAL cause was?

[bricklayer]

If I give a vaccine to a thousand 32 year old men and then monitor them all closely for the next month, some of them will survive.
Did the vaccine save them?

Post Hoc Ergo Propter Hoc