I appreciate the good faith in your comment!
The point you're making about escalating crises seems to me to be covered by the 'significant new information' test that I've described elsewhere (https://hn.algolia.com/?dateRange=all&page=0&prefix=false&qu...). In the case of the current story, we're not suppressing coverage of it or discussion of it; it's the other way around. What is true, though, is that it sometimes takes time to figure out, from the flurry of stories, which are the submissions that best represent new developments. My first impression on this one was "oh, another HKMap.live story"; because there had already been a prominent thread about this (https://news.ycombinator.com/item?id=21159872), it seemed to go in the follow-up bucket. This is a good example of how moderation is guesswork and we often guess wrong. Closer inspection revealed otherwise. User feedback, especially from users who know about the situation, helps us a lot to make better calls. But I think the principle itself is solid.
By the way we came up with the significant-new-information thing after the Snowden avalanche of summer 2013, when users legitimately complained that too many stories on HN's front page were only repeating what had already been said before, rather than reporting anything new. Discussion quality tends to get worse on such stories, too, which makes sense because there isn't new information to sink mind-teeth into. In any case, our goal is not to suppress coverage of these important stories (as anyone who's been reading HN in the last week should know). It's to keep the proportions balanced. Unfortunately for us, one consequence of the proportions being balanced is that nobody's happy with them. C'est le HN.
If there's something I'm still missing, I'd be happy to hear about it and do more reflecting. It will have to be tomorrow though (here) as I'm getting mushy.