Not sure about the incident of which you're speaking, but I was referring to this: https://pitchfork.com/news/conor-oberst-abruptly-walks-out-at-bright-eyes-show-prompting-cancellation-and-refunds/

Not the original commenter (who is being a bit dramatic), but Oberst is pretty notorious for being belligerent and/or very drunk at shows. There was at least one incident recently.