When dealing damage to a target 2 Triumph can be used to destroy a piece of equipment being used by the target...would you allow this to affect the special breathing gizmo being used by a Gand Nemesis? What about a Gand PC?
I've altered the wording a bit to read "...a piece of equipment being actively used..." and consider the gizmo's use as passive.
There are likely other scenarios in which this effect could be "cheesed", but this one is front and center at the moment.