The issue is not that these experts have incredible courage or have published extensively (link), noting that medical publications have recently been discredited for their validity and accuracy (link). The problem is that they are promoting themselves and their work as experts in science or scientists. However, neither of them has scientific credentials and makes false claims in this respect. Their academic education and training are based on a medical degree, which is a typical non-science undergraduate degree (link) with no direct connection to science subjects, such as physics and chemistry (link).
Their involvement in viruses, vaccines, spike protein, and mRNA technology is a good example of claiming or working with false science. These things do not exist or have not been shown to exist (scientifically, experimentally, or physically), so how can they make claims about their problems or treatments?
They should seek help from (actual) science/chemistry experts in dealing with these substances, be it viruses, proteins, mRNA, or medicine, in general, including vaccines, which are chemicals or chemical-based in nature.