She may have approved the content of his speech. I will never believe that she couldn't have enough forums to say these things herself, and with more persuasion. I will never believe that she APPROVED her son's choice of location when he opened his mouth and was a traitor to his father's political achievements. He made a fool of himself, IMO, and if anything, moved people who are wealthy enough to help fund such research AWAY from that platform. He appeared too looney to be attractive on the topic. IMO.
My take on this is that Ron Reagan had the opportunity to address a national forum, and, in this case, one that would be listening closely to him. I did listen and noticed he was very careful to endorse no political candidate or party, but just his own cause. His elderly mother must be exhausted, but I do think we will hear from her again. From what I hear, young Ron is a Green, not a Democrat, which is the reason I think he had no political agenda here, but just trying to bring attention to his family's cause.