[Basic_Strategy]

If they really take the trouble to do a statistical study, they should be able to see a sudden rise in number of heart problems from 2021.  

Then they will be able to say it is linked to Vaccines.  

But they just choose to be blind to it so that they won't embarrass themselves.   

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Possible correlation does not indicate causation. 

Only way to prove that vaccines cause heart attack risks to rise is to have an absolutely UNDISPUTABLE increase (e.g. "people who got vaxxed made up 70% of heart attack victims between so and so time period"), or to conduct a long-term societal study whereby you STOP giving out vaccinations for as many years as you've made society take them (so 3 years for 3 years) and see if there is any noticeable decline in heart attack/mortality rates.