They need to show the data for before 2020 for baseline. In summer 2020, everybody was hunkered down and scared to death, so nobody was out doing risky things during the summer. I’d guess 2020 is a terrible baseline year choice.
I didn’t see teens hunkered down in my city. They were out and about like always
Don’t worry about more data from other years - for some folks there will never be enough to concern them about the safe, effective vaxx. If they themselves were dropping dead from heart disease, they would be certain it was something they had for dinner.