[waitlisted-leave as]Dryad Militant exile Doom Blade

[stassy]

Describe the Bug:
Dryad Militant exile Doom Blade on trigger

Which card did behave improperly ?
Dryad Millitant

Which update are you using?(date,name)Which type(Duel,Gauntlet,Sealed Deck)
Manalink 2016/08/27: Eldritch Moon v2, duel

What exactly should be the correct behavior/interaction ?
Dryad Militant doesn't exile Doom Blade on trigger (Damage doesn't kill creatures, state-based actions kill creatures)

Are any other cards possibly affected by this bug ?
-

[Aswan jaguar]

Card's rulings for reference:
Rulings
1/10/2012 If an instant or sorcery spell destroys Dryad Militant directly (like Murder does), that instant or sorcery card will be put into its owner’s graveyard. However, if an instant or sorcery card deals lethal damage to Dryad Militant, Dryad Militant will remain on the battlefield until the next time state-based actions are checked, which is after the instant or sorcery finishes resolving. The instant or sorcery will be exiled.
1/10/2012 If an instant or sorcery card is discarded while Dryad Militant is on the battlefield, abilities that function when a card is discarded (such as madness) still work, even though that card never reaches a graveyard. In addition, spells or abilities that check the characteristics of a discarded card (such as Chandra Ablaze’s first ability) can find that card in exile.

[Korath]

The Fourth-edition rules regeneration step means that any attempt to fix this is going to break many, many other interactions, probably more severely.

[BAgate]

So is this an engine limitation or just waitlisted?