Policymakers could prioritize more or fewer vaccines, and the reasons to prioritize any particular vaccine would be expected to change over the decades.
Why the CDC isn’t prioritizing more vaccines might be seen as reckless to some. I think it’s a huge mistake that there isn’t a strep vaccine and a universal mandate for that, but it’s clearly not been historically prioritized. Strep has been known for decades to cause mental health conditions in children.
On the other hand, some infections might be better handled by vaccinating around where cases show up, a capability that is possible only now that we have electronic medical records, better tests, the information era, etc. Just-in-time logistics is a huge success story of the modern world.
Opinions of experts are important: expertise requires that opinions should change as the realities do.
An expertise that’s required of a policymaker is to maintain the effectiveness of their institutions by translating expertise into policies that are actually listened to. We have serious warning signs that public trust in healthcare is disintegrating, and that the vaccination campaigns are failing. Policies that are more focused could play out better.