If you use the light mount as a stabilizing handle you can improve the stability of your filming significantly.
[video=youtube;IFzR0eAx0Y0]https://www.youtube.com/watch?v=IFzR0eAx0Y0[/video]
I'd thing such a configuration would have a great tendency to rotate clockwise, with the relatively heavy light twisting the whole thing in your hand.
Plus, if you use the light mount as a "stabilizing handle" you've lost the benefit of the pole.