In pre-Endwalker PvP, when someone died, their health bar disappeared and their name/class just greyed out. For whatever reason, now when someone dies, their health bar stays visible and turns black, often covering the health bars of the people who are still alive. This dead person's health bar takes click priority over the alive people behind them, which makes it significantly more difficult to target anyone standing directly behind a dead person. I can't imagine it'd be too many changed lines of code to make someone's health bar disappear when they die, especially considering that's how it's been in the past, and all the change would do is improve user experience.

Easy change, highly impactful, cleans up an already overwhelming level of screen clutter, and no downside. Yes.