I think you have imagined the scene the other way around, imagine Kanitah lying on his back, Fury is initially kneeling with both legs on Kanitah's left hand side, Kanitah has just had to use his right elbow (rather awkwardly) to stop Fury's own attack from the left hand side. Fury needs to get his left leg around Kanitah's right hand side to obtain the full mount. Meanwhile the only hand Kanitah has free for any sort of offensive strike has just blocked an elbow, and Fury is tight to Kanitah's body making any sort of decent punch difficult anyway.

Check out this video [url]https://www.youtube.com/watch?v=0wYR63ZsbI4[/url] for the reference I used for the takedown.