interface slot powers and AOEs

I have yet to craft any of the interface powers on my AOE heavy Dom, for fear of wasting threads. One of my in-game friends told me he had slotted the one with -res and it did not work with AOEs. Is this true just for that particular one, or is it that way with all the interface powers.

The wording "Most damaging attacks" kind of throws me in the descriptions

My experience with Reactive Interface (the -res debuff) on the test server is that it worked in AoE powers and would proc on multiple mobs with a single attack. I don't think that's been changed, but I could be wrong.

I can see it proc'ing just fine from my Assault Bot's Missile Swarm using Diamagnetic (-ToHit) - there's a small yellow aura on affected targets that pops up.

If you're in any doubt, copy your character over to Test and craft/test the power there.