Who defines newsworthy? How does one know if it will be newsworthy or not before something happens? Can a citizen be arrested or fined for recording police when they record just in case?
Are people using video chat apps going to be fined? How do you know if that is being recorded or not?
I could go on with many examples
You're doing a lot of handwaving, there are many reasons recording in public is legal
Newsworthiness is already a defense in some parts of law. It is a matter worked out by society through cases over time. I know I'm talking to someone who hasn't studied law much so I'll just say you can read a lot about this when you study it, especially the history of constitutional law. But you could start with the idea that it is an event that later might be subject to debate or controversy.
Yes, chat app users could be fined if they identifiably capture the images of strangers (but, as you know, it is not required to video strangers in order to use chat apps). You would sometimes know and sometimes not, like many crimes, but it provides recourse for those affected and chills those who would otherwise do it without considering the effect on others.
