I think sometimes the success that public health bureaucracies had with small pox has given them the belief that such eradication can be achieved with every vaccine preventable disease.
Unfortunately, it’s possible that small pox was a one of a kind eradication event that may not be as repeatable as hoped.
I might argue, given that the smallpox vaccine is no longer included on the schedule, that they do NOT want to follow the smallpox example.