Here's the two options:
1. A visibly excited and socially awkward man who was dancing around shouting and wildly gesticulating on stage, does a gesture where he touches his heart and points at the audience was talking about how his "heart goes out to you", and the connotations to Nazis was a mere coincidence, after which he started talking about the need to hope for the future and space exploration while still wildly gesticulating.
2. A visibly excited and socially awkward man who was dancing around shouting and wildly gesticulating on stage, decided in front of global cameras and every journalist on the planet watching that now would be the best time to reveal he's a hidden Nazi and do a Nazi salute to the audience, and the heart thing was a mere coincidence, after which he started talking about the need to hope for the future and space exploration while still wildly gesticulating.
Some people think two is the more likely option. And I have lots of questions there.
Oh I guess the third option is that he accidentally did a Nazi salute because he was wildly gesticulating and its a salute he often does in other venues away from cameras and his muscle memory kicked in. But again, I have questions.
Even the ADL gave him the benefit of the doubt after seeing the video in context and they hate the guys guts and have accused him or Nazi-adjacency in the past.