More Info Needed Touch of Moonglove lose life trigger not triggering.

[EnforcerX]

Casting a Touch of Moonglove on my Gangrenous Zombies. Sacrificing the Zombies, the deathtouch damage destroys every creature, but the "Whenever a creature dealt damage by that creature dies this turn, its controller loses 2 life" effect doesn't trigger.

 

[Fey]

Casting a Touch of Moonglove on my Gangrenous Zombies. Sacrificing the Zombies, the deathtouch damage destroys every creature, but the "Whenever a creature dealt damage by that creature dies this turn, its controller loses 2 life" effect doesn't trigger.

This also comes up in pioneer goblins with the cards fireblade charger, fanatical firebrand and cacophany scamp