See, that's the point!
If it WAS unintentional, then no fine should have been given! So the fact that he WAS fined, to me says, he's guilty of intent.
Unless Suh can show evidence that he gets "muscle spasms" that causes his leg to "shoot out" like that, i'd find him guilty of being a "disposable feminine cleansing" product you'd use on a "summer's eve".