The first article talks about Messenger only, not WhatsApp, and the second article claims the opposite of what you're insinuating, namely that they want to introduce E2EE across their apps:
> "The first reason I'm excited is moving more to end to end encryption by default in our products. People like this in WhatsApp. I think it's the direction we should be going in. I think there's an opportunity ... to have encryption work in a consistent way across the things that we're doing."
What they certainly analyse and presumably monetise is the metadata.
Yes, but he also claimed to be willing to implement E2E encryption in Messenger (the whole "the future is private" narrative that he tried to push last year).
Plus, merging 4 messaging app of this size probably takes some time. This doesn't say anything about today's WhatsApp IMO.
> "The first reason I'm excited is moving more to end to end encryption by default in our products. People like this in WhatsApp. I think it's the direction we should be going in. I think there's an opportunity ... to have encryption work in a consistent way across the things that we're doing."
What they certainly analyse and presumably monetise is the metadata.