Brad, Kevin, Jim, and Joey: here is the bit from the Infinity rules that shows why you are allowed to flame back someone who flames you through smoke:
In an active turn, miniatures with a Special Skill or Equipment which ignores the blocking of LoF created by Zero Visibility Zones, can perform a Ballistic Skill attack or Forward Observer before his target. His adversary, if he survives the attack (Succeeding at an ARM roll or corresponding reaction) and all enemy figures with LoF to the attacker can perform their ARO despite the Zone, because the attacker has revealed for a moment his location. If the reply is a Ballistic Skill attack, or Forward Observer, they must apply not only Distance and Cover Modifiers but the –6 Modifier for the Visibility Zone. So in this case, for a BS combat in, or through, a Zero Visibility Zone there is no Face to Face Roll, just Normal Rolls.
The Direct Template Weapon here is the Equipment which allows you to perform the attack in the active turn despite the ZVZ.
Intuitive attack is a BS Attack which requires no roll, but auto hits.
Falmethrower shoot is an ARO, you are allowed to declare it despite the zone. Intuitive attack doesn't come into it, because it is it's own special exception to the rule which covers doing stuff in the active turn. There is no reason to conflate the two, as they are two distinct instances wherein one can perform an order despite a ZVZ.