Facebook has what, almost three billions users across its platforms? 70M is ~2% of that, so a small percentage. While I too doubt that 70M figure, WhatsApp is

Facebook has what, almost three billions users across its platforms? 70M is ~2% of that, so a small percentage. While I too doubt that 70M figure, WhatsApp is the de facto communications application in a lot of countries, with many businesses highly reliant on it. In a pinch, you download something, anything to try to continue messaging.