It's unclear exactly how that would operate. As a technical matter, I think that the importance of a person being qualified as an expert is that the person is permitted to offer opinion evidence, as a matter of law of evidence. If a person is being advanced as a proposed expert, the person can be challenged, both with respect to whether he or she is an expert, and then if so, the weight that should be given to the expert's opinion. How would this change things? It's a little unclear, but I would hope that the way in which this would not change things is that there would be some sort of a presumptive weight that would go to a person's opinion, as a result of the operation of this provision.
On September 18th, 2017. See this statement in context.