The concept of "IQ" is used in society to denote a kind of intellectual knowledge that can, through testing and what not, be measured and assigned a numerical value -- the Q in IQ.
Needless to say, the idea that high IQ is a factor in being successful in hockey is about as silly as thinking high IQ is a primary factor in success in real life. Most MENSA guys are ****ing awkward, kind of poor, and spend all day playing backgammon with other MENSA tools. They are bitter because the "dumb" guys around them are on the whole doing so much better in life. I think the same thing is true in hockey. Sure, there's some guys who "think" or "intuit" the game better than others, but without the raw skill and physical strength and speed to compete at the highest level, that so called "IQ" is like a fish out of water. Hockey IQ is at worse a fraudulent concept and at best an overrated thing, one that is barely useful at explaining what makes certain players elite as opposed to just average or bad.
Returning to the original point, the flaws in Risto's game stem far more from his usage/deployments than what may or may not be effects of his hockey intelligence quotient, which is a number you arrive at by pretty much pulling it out of your ass. Ergo, trading Risto because he's "low IQ" -- as many around here are want to do -- is dumb.