WhatsApp is hardly safe from prying eyes anyway.

Sure, there's always-on E2E encryption that is really well designed. However, WhatsApp constantly prompts every user to back up to the cloud, which is much less well secured.

Thus, it's pretty trivial for the authorities to get to it there, I'm sure they can get into iCloud and Google Drive if they want to. It only takes one person in the conversation to have this option switched on. I think this is why WhatsApp doesn't get so much flak from the authorities for having good E2E encryption.