Agree that it would be good to hear from someone that has just done it to verify.
But, further down in the manual it discusses removing the Primary Gear Drive Nut, and it specifies that it is a LEFT hand thread.
So, it would make sense that the manual will only make a reference to a thread direction when something is Other-Than-The-Norm.
So, with this thinking, the nut on the Clutch basket is normal Right Hand thread.  And that follows suit as to where the tool is placed in the picture.

Good luck with your project.