The poll results show the real sentiment, that close to 30% of people actually like synchronous chat. That is a significant chunk.
Perhaps there's an unmet market need for a product that both excels at synchronous and asynchronous communication.
I could see potential for a feature in a chat program where a message or series of messages could be selected and enshrined in a search engine-indexed synchronous knowledge base page, working something like a more powerful version of a pin in Slack or Discord.
Overall, though, I felt like the article was kind of bossy.