I remember waiting patiently for somebody to do a study or show some internal data on whether the claim denial rate went up or down, and never saw a lick of it.

Like, sure, there are people who get their claims approved. There are also people who get them denied and don't dispute the decision. You can't use anecdotes as evidence.

EDIT: I went searching again just now and I found that, at least 2 years after the killing, UnitedHealth was STILL investing heavily in AI claim handling, which would increase the claim denial rate. The industry as a whole have also raised rates dramatically. The slightly more apologetic UHC interim-CEO resigned and was replaced by a more profit-focused individual by shareholders. Healthcare companies spent more on security in 2024.