It's a product of the system, as each "spell" gets 100 feet of range per 1 rank of effect. (so rank 4 = 400 feet)
What is "big" about it though is the cone effect, as it's 120 ft (2 ranks of area (cone)). So it has a 400 ft range and from any point within that 400 ft the spell gets cast, which is a 120ft range 90' degree cone. Is that alright?