I haven't caught up in full yet but I had a thought that explains the J a bit better to me further to last speculations.
He is allowing HH all this nonsense because he will have to adjudicate the claims within the nonsense.
Which is why there is an imbalance between his approach to HH and NC. He doesn't have to adjudicate on anything NC brings and so it annoys him that he has to even listen to it. He wants to concentrate fully only what he will have to adjudicate.
Whilst HH approach to evidence has been nothing less than shambolic it is a key part of the claim that moderation favoured GC. He has to allow her to support that claim even if her way of doing it us utter rubbish.
He is motivated, in my view, mostly in not making any mistakes and by that I mean missing anything that might be construed as objectively offensive and which should have been taken down whilst taking down only mildly offensive posts from TRAs.
Not because he is seeking to find that the moderation showed bias but because he doesn't want to make a mistake. He is minded in this of the pounding Kemp has received for errors and his entire focus is on not making any errors himself. That is, I think, his entire focus. Me Me Me.
In my view, also, his mindset with regard to what might be considered objectively offensive is tainted by a legacy of Stonewall Training and an insufficient curiosity about what SEEN actually is and represents.
We shall see.