Have to say I take the opposite approach these days. I don't have time for systems which try to create rules for every situation.
Not saying it should. Random situations are covered by temporary, scene, and location aspects pretty well. There are already rules for spray attacks though, and I don't see why it is crazy to expect it to say whether some supernatural weapon can use them or not. Given that it seems you typically can't use them with Weapons (there's a stunt for melee weapons, for instance), seems like you wouldn't be able to with a breath weapon.
Anyhow, rather immaterial, I think...I had other stuff in that post, but everyone hates me and has ignored it *cries*
If you were GMing and set a dragon as a roadblock,how would you model a dragons fire breathing power, I wrote up a Dragon build which involved incite emotion, Mythic Toughness, Mythic Strength, Physicial Imunity (catch true herorism) but however I look it breath weapon at weapons 2 seems silly for an impossible road block NPC in the end i just used Sponsored Magic Dragon Fire. If you wanted to model a dragons fire as abreath weapon how would you do it.
Have Strength powers add to Breath Weapon attacks, whatever form they might take, and this is covered nicely. A Dragon with Supernatural Strength would have a Weapon 6 Breath Weapon. Add in some of the optional stuff I proposed and it is worth 2 refresh, I think (and pretty cool to have a dragon that can make zone barriers and such even if it has no magic).