When context keeps the meaning clear. What the authors talking about. He’s having a clear message. So people understand what is going on. But sometimes the message can be unclear. And people can take it the wrong way. Communication is complicated especially when you are talking to somebody through text. I think it is easier to talk to somebody face-to-face or on the phone or in a zoom meeting. That is a clear message to me. The messages that I can’t translate. Or mostly text, but sometimes to understand what is going on I would have to ask them multiple questions to get the clear answer.Context of everything and we take it for granted.

This is obviously key, but I feel like some examples would help.

Can we think up some good examples of this difference?

I suspect it's the difference between situational factors which are not directly relevant/impactful to the rhetoric (such as whether the speech was delivered on a Wednesday, whether there was a light rain the night before, the size of the room in which the rhetor is speaking) and the factors which contribute to some urgency that demands a rhetorical response (recent political actions, a sudden death, impending threats from an outside force, etc.)