Removing "some" doesn't make it worse. They didn't include "all" AI titles which it would. "Google removes AI health summaries after investigation finds dangerous flaws " is functionally equivalent to "Google removes some of its AI summaries after users’ health put at risk"

Oh, and also, the Ars article itself still contains the word "Some" (on my AB test). It's the headline on HN that left it out. So your complaint is entirely invalid: "Google removes some AI health summaries after investigation finds “dangerous” flaws"