It was assumed that the reason for why 'Kyp' allowed the paddle to slip from his hands, could be because of a slight 'Back injury' he received whilst at the 'Gym' the morning of this incident, he incorrectly lifted his weights and strained his back and right shoulder.
It is probably likely (if the rumours are true) that his inability to perform the 'Hip Snap' which is essential for recovery, could account for his failure to perform the 'Kayak Roll' successfully.
One cannot dismiss the possibility that the 'Kayak' might have been 'Unfit for Purpose' and since neither 'Kyp' nor 'Kayak' have been seen or heard of from the time of the rumoured incident, one can only speculate.