They shouldn't because the AoEs mentioned don't apply a rdebuff. Shrap bomb, for instance, is an AoE DoT that actually applies a debuff and does not interrupt caps. Orbital Strike is a DoT but only in the AoE so it should interrupt caps.
Throws an incendiary device that sets the target area on fire, dealing 3416 elemental damage over 18 seconds to up to 5 targets within 5 meters and slows all affected targets by 50% for 3 seconds.