Dark Emu is recommended for use in the school curriculum, along with lots of other material, and that book referred to above is a teaching aid, which, given the authority with which he speaks about it, I assume L2R2R has read cover to cover and used in an educational setting.
Now, I wonder what would happen if we went through all the recommended texts for use in Australian History classes in schools, nothing contentious there? I hope not, there should be lots of contentious material in texts used for teaching history.
DS