This is a political stunt aimed at threatening healthcare providers who administer life-saving vaccinations, all to appease the anti-vaxxer faction of the right. Though the CDC, WHO, and various medical journals have all presented facts to the contrary, Idaho's GOP has chosen to ignore the science and punish doctors. If they were truly concerned with health rather than politics, the lawmakers would go after the pharma companies that developed the vaccine.
VAERS reports are made by both individual vaccine recipients and healthcare providers, so these data are not to be taken lightly. States have a right to study, question, and legislate based on vaccine research. This issue has become politicized, but not because of so-called anti-vaxxer right-wingers. Left-wing media outlets and Big Tech have censored reports of vaccine injuries, and it's about time officeholders held the rich and powerful to account.