Somehow WhatsApp implemented Snapchat-esque stories, and also channels that broadcast such stories (e.g. I can subscribe to updates from FC Barcelona), because hey, Zuck probably thought "who needs shame, we're going to copy functionaliy in order to destroy the competition".
Why does Ars pretend that trials have any meaning in the US? Maybe if this lawsuit was taking place elsewhere, sure. Zuck will just follow in Bezos' footsteps, make a movie "Donald Jr", and that'll be it.
Of course I know why they pretend, because they too don't really care, and keeping up the facade is better for business.