Accepting the fact they aren't changing the proc on death as it ties to the theme of "Retribution", Make it so that people within your aura near the player that died also get short wings. Call it empowered by the light or something. This would make it feel less selfish and more party-oriented. It would be valuable on progression nights. Just give it a debuff that won't allow you to benefit from the proc more than once every minute. Alternatively, you could always give players struck in combat under the effect of the aura have a % chance to strike the enemy in return for holy dmg. In its current state, it will rarely see use.