Your example proves nothing. It is specific to your channel and the stream is not even live.
These elements most likely have to do with ads that are played during the stream. It may have been a specific ad that did this, or some interaction with AdBlock that allowed the elements to be injected and not the scripts that will populate the elements.
I am not sure why are you constantly denying a potential issue, if you think this issue is irrelevant then simply ignore this topic.