That's a little harsh.

A common misunderstanding about introverts is that they don't much enjoy talking with others. For many, it's rather that they are seeking meaningful communication, not vacuous chitchat about the weather or the Kardashians. That's what the author is expressing I think.

At the same time there are plenty of people who can chitchat about drivel for hours, and will actively stop any conversation at a deeper level. For introverts, these are exhausting interactions. Some small talk really is small talk, and it's not realistic to expect others to just exhaust their energy in trying to move those conversations to a deeper plane.