I'm curious: if Facebook did exactly what Apple describes in this document for its WhatsApp customers (at least for data beyond the minimum required to deliver

I'm curious: if Facebook did exactly what Apple describes in this document for its WhatsApp customers (at least for data beyond the minimum required to deliver their service), would their privacy statement be able to look like iMessage's? I'm guessing not, but I wonder if someone who is more knowledgeable could answer the question definitively.