Not at all, participating at a LIVE webinar is certainly a more engaging and interactive experience than watching a recorded video.
You will be able to ask questions that are relevant to the topic during the session, or even after the course via e-mail to the same presenter.
Moreover, the slides are shown with live explanations, and if you wish to put a question on their content, you can do so easily via chat. You are also requested to take part in the interactive exercises to make sure your learning is maximised.
You can even watch the recorded event afterwards to refresh the content or in case you missed the course.