I don't see it as misleading at all. You're leaving out half the world and implying it's doing fine. Regular Facebook usage in Brazil is also non-existent and it's the 5th or so biggest Internet market. China doesn't have it. I'm not sure about India usage. So if FB isn't popular in the US, EU, China, Brazil, etc, that's an extreme amount of market loss.
WhatsApp covers a lot of the remainder. When I worked at a job with frequent contact with international guests, the vast majority of people from Africa and SEA, and a good portion of those from Latin American and MENA, were on it. In fact, the first time I'd heard of the app was from them. This was about 10 or 11 years ago. It might have changed since then, as Facebook has for us, but Zuck's empire (read: illegal monopoly) has been dominant globally.