Well arguably facebook the product has been the problem, not facebook the coorporation. Those other products you mention don't have the same "put all information about yourself on here" design, and nowhere near the amount of news/politics on them.
The other products Facebook own literally are "put all information about yourself on here" applications? I notice that if I talk about something on whatsapp I see some sort of ad on instagram around it etc.
Supposing that the focus switches from Facebook to these other platforms how long until you see exactly the same patterns in these applications? We're talking about Facebook's core monetization strategy here, if they feel it's threatened I'm sure they'll do everything they can to "correct" that.