It's all just internet nonsense until the 'unnamed source' or JJ speaks out.
I dunno. I'm filing it under 'probably true but blown up out of all proportion'. Sounds like someone who's not used to how big studios work hearing one side of the story and making a big deal out of it. Whereas in reality that's exactly how these movies are made. Gone are the days where a director has final say and complete control.
For example, just quickly;
My source mentioned this shortly after the premiere: “The TROS we saw last night was not the TROS we thought we worked on”.
Totally normal for someone working in production. You shoot a movie, 6 months later another movie comes out.
JJ wanted to do some scenes he thought were important but Disney shut it down citing budgetary reasons.
Totally normal for any big budget movie.
My source thinks but can’t 100% confirm that this is because of China.
I have first-hand experience of big budget movies changing for China. Heck, they are changed for a lot of markets post- final cut. E.g. Ted 2 cut all of the drug references for Russia because you're not allowed to show it. China has a lot of sway over Hollywood right now. It's a massively untapped market and all studios are changing their dynamics to suit.
Disney demanded they shoot some scenes that would have things in it for merchandise.
No surprises there. It's how Disney makes it's money and has done since the first SWs.
JJ’s original early November cut was 3 hours 2 minutes long.
No surprises that an earlier cut is a lot longer, that's how editing works. I'd question the timeframe though, if the movie released 19 December JJ probably delivered the cut to Disney a week or two before that. I'd imagine his "November cut" was probably from a month or so earlier than that. Unless the source is very high up I doubt he'd be watching many cuts, depending on their role.
...Then there's a whole bunch of stuff about scenes getting cut shorter. No ****, again that's editing. A movie like SW would probably shoot 3-6hrs of footage a day, for about 60 days. You think all of that makes it into the movie? lol.
tldr; it's a bunch of half-truths majorly embellished to create a story for the fanboys.