And I understand where you're coming from as well. My brother was down for two weeks. Got so dehydrated that he needed a saline drip. And if you knew my brother, you'd know he fvcking HATES needles..... so I knew this was serious. But it's no mystery that with the rushed development of this vaccine, the drug companies went to the government and said "look, this may be possible to do in such a short time line, but juuuuuuuust in case we fvck this up, we're going to need some liability protection" and the government granted it to them.
Once the liability shield is removed, it will be the "bat signal" that let's you know the drug companies are fully confident in their work.