They definitely should have a warning. The legal immunity was a practical measure, so I can understand that. The issue I have with the immunity is that it stands as an ongoing precedent, if it's never rolled back.
Yes, they seem to have taken this as an approval of mRNA technology, despite the trials not actually being complete, skipping important parts (testing for cancers, and testing for where the vaccine ends up in the body). And basically ignoring any adverse events. There are massive signals in VEARS, but they are being ignored, the CDC admitted they weren't actually monitoring this at one point.