I've always viewed them as flavored jazzed up summon alchemist fire spells. Notice alchemist fire does not allow a saving throw on the initial damage. I think I would be fine with the orb spell if they also shared the 10 foot range increment. Let the wizard get nice and close to the heat of combat if they want to lob conjured elements.
Alchemist’s Fire: You can throw a flask of alchemist’s fire as a splash weapon. Treat this attack as a ranged touch attack with a range increment of 10 feet.
A direct hit deals 1d6 points of fire damage. Every creature within 5 feet of the point where the flask hits takes 1 point of fire damage from the splash. On the round following a direct hit, the target takes an additional 1d6 points of damage. If desired, the target can use a full-round action to attempt to extinguish the flames before taking this additional damage. Extinguishing the flames requires a DC 15 Reflex save. Rolling on the ground provides the target a +2 bonus on the save. Leaping into a lake or magically extinguishing the flames automatically smothers the fire.
Alchemist’s Fire: You can throw a flask of alchemist’s fire as a splash weapon. Treat this attack as a ranged touch attack with a range increment of 10 feet.
A direct hit deals 1d6 points of fire damage. Every creature within 5 feet of the point where the flask hits takes 1 point of fire damage from the splash. On the round following a direct hit, the target takes an additional 1d6 points of damage. If desired, the target can use a full-round action to attempt to extinguish the flames before taking this additional damage. Extinguishing the flames requires a DC 15 Reflex save. Rolling on the ground provides the target a +2 bonus on the save. Leaping into a lake or magically extinguishing the flames automatically smothers the fire.