The issue for WhatsApp is that when you claim security and privacy is in your DNA, you open yourself up to a heightened level of scrutiny. Suddenly, those concerns around WhatsApp metadata collection became more real. Now we could easily see that WhatsApp collects the contacts in your phone, commercial data where you use Facebook services, device-based identifiers, your IP address which provides your location unless you’re using a VPN, and your usage logs. All linked to you.
Very informative article from Zak Doffman regarding the new security labels and how damning it is for WhatsApp and FB.