I have some minor and interesting updates on Cult of Abaddon.
First, the PDF copy is no longer available for sale. Vince Florio edited his page (link in the OP) to add "Due to some legal advice I was given, I decided to remove the PDF from sale. Thanks for inquiring folks!" The adventure is also removed from lulu. I don't know when this change was made.
NuTSR has claimed on Facebook that they have fulfilled all orders for CoA. Their website still shows it as "backordered". However, we do have proof that hard copies exist. One of the photos from TSR Con shows a copy on a table. And at least one person bought a copy, had it signed by Ernie, and did a review on Youtube. That person is Jason Schattner, aka Wolfphototech, who runs the channels "TableTop Gaming with Wolfphototech" and "Wolfphototech Interactive Entertainment". We also know from FB that he has applied for a job at the DHSM, has been in direct contact with LaNasa, and started making the rounds on some Star Frontiers pages.
His video can be found here:
He doesn't go into very much detail or useful information about the module. But he does show some video paging through it. From what I can see all the artwork is identical to the PDF, and in one shot I can verify that the inexplicable "Cover Art by: Madre Shipton" note is still on the back.
Jason claims in this video to have dyslexia and Asperger's (his word, not mine). So, I don't want to harp on this too much, but he doesn't get the name of the module right. He call is "Cults of Abandon", which may explain why this review is hard to find on Google. "Abandon" isn't just a typo; it's how he pronounces the name. Also his mention of the "Curse" of Abaddon" is a reference to the fact that Ernie mistakenly referred to the adventure as "Curse of Abaddon" on FB when they announced that the hard copies were shipping.
Jason doesn't go into any detail about the editing problems in this video, but in both the video before and after this one on his channel he goes into weird side rants that are clearly justifications for the errors. This includes a tangent about errors in other books, and a justification that "old people with bad eyesight" should be forgiven for editing failures. To me, it feels like a lot of whataboutism, and hardly justifies the scale of the errors in a 17 page book or the misuse of artwork. YMMV.