2) NYT seems to intentionally not elaborating on the "access to users' private messages" part and conflating app permissions to actually scanning, parsing, storing, deleting, modifying individual messages. Until disproven, it sounds like these are just standard app permissions needed to implement functions like song sharing in Messenger chat (in the case of Spotify), or sending payments over chat (in the case of RBC).
This is disappointing journalism, to be honest. FB has done a lot of bad things and they deserve the negative press, but it does seem like NYT has some kind of personal agenda against the company and they aren't afraid of exploiting the tech ignorance of their readers to accomplish that goal.
This is like publishing "Popular privacy extension uBlock Origin 'Accesses your tabs and browsing history'". Yeah. Because it needs those things to function:
https://github.com/gorhill/uBlock/wiki/Permissions
Anyone who's ever written an Android app or a Chrome extension should see right through this sensationalism.