"...where there is not certain and irrefutable evidence, to conclude that there is a defect in a vaccine and a causal link between the defect and a disease on the basis of a set of evidence the seriousness, specificity and consistency of which allows it to consider, with a sufficiently high degree of probability, that such a conclusion corresponds to the reality of the situation, are compatible with the Directive.
Such evidentiary rules do not bring about a reversal of the burden of proof which it is for the victim to discharge, since that system places the burden on the victim to prove the various elements of his case which, taken together, will provide the court hearing the case with a basis for its conclusion as to the existence of a defect in the vaccine and a causal link between that defect and the damage suffered."
If I'm interpreting this correctly, this seems like it's meant to protect the victim.