Yesterday, a bit of an argument formed in The Bridge after a moderator moved a set of posts mentioning a fidget spinner to This Is Fine, citing the "Horrific news belongs in This is Fine" rule. During this argument, A user voiced the complaint that they "haven't been thrilled with the way it feels like we're not even allowed to mention news in this room anymore." and that they miss the older days of casually discussing news events in the Bridge. The discussion can be found in the transcript at https://chat.stackexchange.com/transcript/message/40071267#40071267
What I suggested during that discussion, and officially propose in this meta post as a general rule (with exceptions possible), is that we amend the rules of news in The Bridge from "all news and discussion of news belongs in This is Fine" to "some minor discussion of news is fine in The Bridge, but once it gets deeper and more involved, it is moved to This Is Fine", similar to how extended discussion in comments is frequently moved to a chat room on the main site.
Since we need to have an objective definition of "deeper discussion", I suggest we use the number of posts made in relation to the news item. I am not sure when the suggestion to move a discussion to chat is triggered on comments, but I think it's after 6 or so comments, or 7 including the question or answer that triggered the comments. This seems like a reasonable limit: 7 chat posts including the news item itself, after which chat is encouraged to continue the discussion in This is Fine (possibly through a moderator moving the chat messages as a gentle reminder to continue the discussion in This Is Fine.)
TL;DR: allow limited discussion of news items in The Bridge, but move the discussion to This Is Fine after 7 posts about the news item.