That is a thoroughly unconvincing graphic, yeah.
A few of my neighbors have kids the same age as my kids, they're on a WhatsApp group chat, and my choice is either use WhatsApp or make my kid miss out on social events, so it's not really a choice.
"Hey let's switch to this app that nobody else is using and it sends you annoying popups every month but trust me bro it's more secure" is not a winning argument