The article says it was intentional, but it looked to me like he lost an edge.
Maybe he was being a semi-jerk, trying to scare the guy but not hit him and he screwed up?
They way he looks back at him seems to indicate concern.
I agree with Snowballs that skier could have been hurt way bad and was very lucky.
"You just need to go at that shit wide open, hang on, and own it." —Camp