In general, I agree with you, but in the context of this conversation, I think it’s fair to use aggregated numbers.
A headline saying that “more vaccinated people died from Covid” is misleading because there are far more vaccinated people now, older and more at risk people are more likely to be vaccinated. Using aggregated numbers is just for simplicity of adding context.
It’s like someone saying, “the US prison population is majority white, therefore there can’t be systemic racism against black people.” It’s fair to aggregate numbers and point out that black people are far more likely to get arrested, even if black Grandmas don’t get arrested that often.