Red Devil tokens triggering even when disabled [Investigating]

These guys are pretty prevalent in Avacyn's Madness event, and pretty annoying when you have them disabled and then kill them, they still ping your first creature for damage. In contrast, if you have Seal Away out and it's disabling something like Relentless Dead, you can destroy RD w/o the effects triggering because it is disabled.

//Edited Title - Tombstone