I don't think JL is doing anything beyond commentary as he sees it....
His post about getting a move on at SDV was pretty much what we're all feeling, frustration at the time the J/V deal is taking.
As far as the NMX/GXY tweet, I think that was simply a reflection on the possible execution risks that new tech might bring to the project, he did say he'd heard a rumour from Oz.
I suspect he'd heard about the (then) impending big announcement from LPD and made an assumption.
As far as being down on GXY or upset about some Ganfeng rumour, I doubt that he would be quite so petty. He has made his career from his relationships within the industry.
Every instance I can recall of Joe being critical of a company or individual has contained no ambiguity. He makes it quite clear what and why.
He was/is meeting with GXY, amongst others, in the last few hours........