They hook you into an ecosystem. That’s it, thats the game. I don’t think it has too much to do with insecurity. Group chats and video chats with people outside of imessage is awful. Group chats lose a lot of features because SMS was all there was for a long time. Standard (not Google-ified) RCS is still too bare at the moment so I don’t think the looming rcs fixes that aspect of it.
This is most definitely a feature here. What ARS won’t say (but their source articles do) is that Newsbreak is an app right out of China. That’s why they don’t care that this creates entirely fictional stories. This is the leftwing equivalent of all those rightwing agitprop sites that pretend to be local news in order to trick people