Tyreke Evans should be the rookie of the year. He was a game changing force with his (1) scoring (2) rebounding (3) passing, and, (4) defense.
There are only a handful of players in this league who can dominate a game in so many different areas.
Number 4 is questionable considering how bad his team was; Curry averages .4 more steals per game in fewer minutes, and Tyreke barely averages more blocks (.36 vs .25), if you want to go by stats. The first three can all be attributed to Stephen Curry as well, perhaps even more so. Curry is close to the rebounder that Tyreke is even though he's 3 inches shorter, and he had a higher TS% and overall FG% even though he took a lot more 3's than Evans.
They are rather close in stats, though, so I think as the article implies you have to look at how his play affected his teammates. Lots of young, inexperienced, and largely undrafted players flourished around Curry this season - especially when ballhog Monta Ellis wasn't playing - whereas Tyreke's teammates, a few of which are former lottery picks, stagnated.
You want to see a player dominating the game, check out Curry's stats for the last 5 games of the season:
27 pts, 14 assists, 8 rebounds, 3-5 from deep.
29 points, 4 assists, 9 rebounds, 5-10 from deep.
25 points, 7 assists, 7 rebounds, 3-6 from deep.
17 points, 6 assists, 5 rebounds, 1-4 from deep.
42 points, 8 assists, 9 rebounds, 4-6 from deep. (12-12 FTs)
That last ridiculous line came against Portland, a very solid defensive team. Curry also had, I believe, at least a couple of triple doubles this season, including one game that was close to a quadruple double.
Remember that Curry does all this even though he is 3 inches shorter and about 40 lbs lighter than Tyreke.