That might be pedantic, sure, but the point is that extending is not mirroring. For the use cases like the one described in the article, that distinction matte

That might be pedantic, sure, but the point is that extending is not mirroring. For the use cases like the one described in the article, that distinction matters. I'm not questioning the usefulness of the orange dot, but rather the people saying the workflow of using a second monitor as output as being invalid and wrong.