Perception and communication are closely interlinked. I think the article has explained the relationship between them well.
I think that a common issue that many of us experience while communicating with other people is that we put too much emphasis on perception. Many of us, when we listen to another person, we don't listen carefully enough and we don't try to understand what is being said. We are usually thinking about how to respond. Our communication is mostly shaped by what we perceive, but we don't always perceive things correctly. And sometimes this results in misunderstanding what is meant.