Your thought process is classic example of zero risk bias.
So safe they need to avoid liability? So safe many of the vaccines had complication rates far higher than any flu vaccine in history?
Look I'm glad we had the vaccines so quickly. Trump pushing them through regulation was extremely good for man kind and we have all benefited.
But stop acting like there is no risk.
We know some people will be harmed by vaccination. Despite that, we need to vaccinate as many people as possible. Because of that, we make it easy for people who've been harmed to claim compensation from a government and industry backed fund, rather than force those harmed people to go through the courts against multi-billion dollar companies with very expensive lawyers.
Despite thousands of reports of injuries, including death, I don’t think anybody has been compensated.