It's not hard to understand why Stephen Curry shoots more than the average point guard. He's still young, but its still easily one of the most prolific shooters in league history. Last year he famously broke the record for 3 pointers made in a season... and did it shooting over 45% from 3 point range. The guy is a deadly shooter, so yes he is going to shoot more than a guy like Chris Paul. That said, his shooting ability opens up the floor for their offense. With defenses playing him tight, pick and rolls become more effective, and he is a good ball-handler and passer. The warriors offense absolutely feeds on everything he does. He has missed 1 game this season, and in that game, the Warriors managed to score 81 points in the entire game, including overtime.
A guy like Steve Nash, who is considered to be one of the best offensive point guards of this generation, a guy who is a great and willing passer, was seen as a chucker on his Dallas days. His game evolved. Curry's career is off to a great start, and he's only going to get better as his point guard abilities continue to develop.