Bug: Polearm Slash failed against Firestorm

My Armor triggers against almost all damage, how come it didn't trigger against Firestorm?

I have the entire log if required.

BATTLE LOG: Player=BumbleRumble,Scenario=Streams,Room=Bane vs BumbleRumble,RoomID=40670,Event=PlayAction,Action=Firestorm,Instigator=Rom,Targets=
startTimer 1 976
BATTLE LOG: Player=BumbleRumble,Scenario=Streams,Room=Bane vs BumbleRumble,RoomID=40670,Event=TriggerSucceed,Trigger=,TriggeringActor=Rom,AffectedActors=,TriggerType=PreDamage,TriggerLocation=Hand
BATTLE LOG: Scenario=Streams,Room=Bane vs BumbleRumble,RoomID=40670,Msg=Rom took 1 damage
BATTLE LOG: Player=BumbleRumble,Scenario=Streams,Room=Bane vs BumbleRumble,RoomID=40670,Event=TriggerSucceed,Trigger=Holy Armor,TriggeringActor=Jet,AffectedActors=,TriggerType=PreDamage,TriggerLocation=Hand
BATTLE LOG: Scenario=Streams,Room=Bane vs BumbleRumble,RoomID=40670,Msg=Rom healed 1
BATTLE LOG: Scenario=Streams,Room=Bane vs BumbleRumble,RoomID=40670,Msg=Jet healed 1
BATTLE LOG: Scenario=Streams,Room=Bane vs BumbleRumble,RoomID=40670,Msg=Jet took 3 damage
BATTLE LOG: Scenario=Streams,Room=Bane vs BumbleRumble,RoomID=40670,Msg=Coraline took 4 damage
BATTLE LOG: Player=BumbleRumble,Scenario=Streams,Room=Bane vs BumbleRumble,RoomID=40670,Event=TriggerSucceed,Trigger=Superstitious,TriggeringActor=Candalele,AffectedActors=,TriggerType=Death,TriggerLocation=ActorAttachment
BATTLE LOG: Scenario=Streams,Room=Bane vs BumbleRumble,RoomID=40670,Msg=Detaching and discarding Sizzling Bolt from Coraline
BATTLE LOG: Scenario=Streams,Room=Bane vs BumbleRumble,RoomID=40670,Msg=Coraline died
BATTLE LOG: Scenario=Streams,Room=Bane vs BumbleRumble,RoomID=40670,Group=Coraline,Event=Discard,Card=Polearm Slash
BATTLE LOG: Scenario=Streams,Room=Bane vs BumbleRumble,RoomID=40670,Msg=Candalele took 4 damage
BATTLE LOG: Scenario=Streams,Room=Bane vs BumbleRumble,RoomID=40670,Msg=Attaching Firestorm to Rom
BATTLE LOG: Scenario=Streams,Room=Bane vs BumbleRumble,RoomID=40670,Msg=Attaching Firestorm to Jet
BATTLE LOG: Scenario=Streams,Room=Bane vs BumbleRumble,RoomID=40670,Msg=Attaching Firestorm to Candalele
BATTLE LOG: Scenario=Streams,Room=Bane vs BumbleRumble,RoomID=40670,Msg=The active player is now Bane

 

Polearm Slash provides armor for melee attacks only. Don't worry I've made the exact same mistake.

 

I swear, 50% of the bugs I submit are just me not reading the card correctly -_-