This is a very dense texts, i only skimmed it, i couldn't give you timely reply otherwise.
page 8>Harris’s distinctive phenomenological and interdisciplinary approach to the hard problem of consciousnes
I think he might be spooked about consciousness. There is no hard problem in consciousness unless you want to sneak in dualism.
You can't really justify consciousness as an irreducible a posteriori on physicalist terms.
page 44>Harris was simultaneously continuing his campaign for a federalist world government
I haven't come across any advocates for a federalist world government, i wonder how they would enforce that ? For example how would a federalist world government make the US (or other superpowers) adhere to world government laws ?