The Great Weapon is different to the one in DH. It has no pen and is listed as Unbalanced instead of Unwieldy. It is also not listed as requiring two hands to use in the weapon table. There is a qualitative description about them being used two handed, but no actual rule about it. I assume it would at least be unwieldy, the ability to parry with such a powerful weapon is pretty good. The Warhammer is not listed as Unbalanced like the Hammer and Axe from DH.
The spear and staff are not listed as using two hands either.
The Divination Discipline Emperor's Tarot Technique " Blessed by the Emperor" lists Divining the Future as its prerequisite. So does "Walking the Path". However, "Walking the Path" is just a slightly worse version of "Blessed by the Emperor". Should "Blessed by the Emperor" require "Walking the Path" as its prerequisite instead?
It seems to follow a similar pattern to other techniques like the "Force Weapon -> Force Shard" path ruleswise.
I'll put anything else I find in here.
Hellebore