Thanks for posting. It does not appear that Seifort and BC are getting paid by Heritage for this article (or they are not acknowledging it) as with that prior Promise piece that broke the story, but it still is just a puff piece without substance or accurate facts on the back story. If you want to know the info that matters here it is:
The Promise Collection includes Batman 1-3, Detective 33, 38, 39, 43-46, New York World's Fair 1, Special Edition 1, and Whiz 2, 3, 7 and 9. Disclosed page quality ranges from cream to off-white and grades range from 4.0 to 7.0 (although we know that there is also a Batman 9 3.0).