This is primarily a question. And maybe a FYI.
I noticed when using the lite rig (for doing the 11 sec club animation this month) that I was missing being able to rotate the HIPS Null and have the body (torso,pelvis, arms) rotate with it. Perhaps I missed some instructions to reparent the torso geom bone, and maybe the Biceps as well?
So I just did some experimenting. I dragged the torso, bicep bone hierarchies to under the Hips null
If I didn't miss the instructions, and that wasn't your intent, you may find, like me, that there is more flexibility and ease of use if you do that. Everything seems to still work. However I did not test extensively. I think when I am done with the 11 sec animation, I will do this to Rita.
I think this works better as you can still isolate torso, lower hips movement, as well as move them all together.
I took a look to see what the other rigs were doing - and its all over the place. So obviously it's a preference of mine.