I'm not disagreeing with what you're saying in theory or really for any other discussion about any other disease with such significant age group risks, but at this point isn't the answer really no?

If there were any statistically significant benefit to the vaccine, shouldn't it have been obvious even without the age group breakdowns?

Those curves are so perfectly matched that it seems like even some level of age group differences falls into the "not actually meaningful" category.

Again, I'm not disagreeing with the point you raise overall.