I haven't run it, but I did read it along with the others in the series. I remember my impression was that it had no connection to the others, but because of the wall-of-text issue I couldn't be sure, and I didn't like it enough to re-read it in sufficient detail to catch anything I missed. It does have encounters involving previous villains in the series - the Emerald Claw and the Lord of Blades, with one encounter for each - but I didn't sop anything that carries over to the next adventure in the series.
Looking at the Emerald Claw encounter I see it is a four-page railroad which appears to expect the GM to give the players the illusion of doing something, while preventing them from actually having any impact on the outcome. The real action occurs between the NPCs, which the GM narrates to the players. The villains escape, the airship crashes, and there's nothing the PCs can do about any of it. I think this is typical of the adventure, so if you dislike this sort of thing I am reasonably sure you can safely give this a miss and fill the space with something else.