The rasengans we've seen Naruto use are high damage, high destruction level, hand to hand/close range techniques. There is absolutely nothing wrong with such techniques as long as the fighter has the means to make it connect. Getting at that is like getting annoyed that your fist has to make contact with the opponent for it to have any effect. Or wishing your foot was a bullet instead. Kishimoto even fixed THAT for you all...

For all I care, I don't mind if he never gets a long range attack so long as he has multiple techniques and diversions to make his close range attacks work.