With the introduction of Business accounts on WhatsApp, the chat list has become cluttered with likely spam or unsigned messages.
This is a mock of how WhatsApp could separate business chats to a new section.
While this may reduce the CTR for businesses, it is still a considerable change, since most signed-up services are also moved, which retains users discover to new business messages as well.
WhatsApp Android mockup
WhatsApp iOS mockup