That's not what most people like considering the flak Elon Musk gets for doing exactly that.
Besides that, yes not having planned speeches and speaking your mind unfiltered are traits that I would absolutely expect to see in the same person. They are different expressions of the same thinking process. I'm sure a lot of us have read that Thailand is were pedos go etc. But most people would have the restrain to not call someone attacking them a pedo.
Musk tweeting some guy is a pedo has NOTHING to do with his public speaking skills. It wasn't in a public speaking setting.