And I think you can do more about E2E encrypting it. Or at least trying to. At some point, people don't want plaintext journals floating around stored permanently. Although I know it starts as cleartext on whatsapp's servers
Easy to say, very difficult to implement it right (and implementing it not right is diffcult AND useless). Also, let's be clear here, whatsapp E2EE is a joke.
My guess is since its closed source, no one beside them can verify that the supposedly e2e is even true, or exist in current latest binary. Sort of telling everyone that I've got a mountain of gold inside my house but the door is locked, no one beside me could verify my claim. Security and/or privacy via obscurity is moot.