first I am sorry for misleading you with the documentation.
The case is that the AUX connector pads were originally included only on the first revisions of OAK-D-PCBA which is a variant of the OAK-D board meant to be used without enclosure. Footprint was removed with revision BW1098OBC_R3M1E3, I am not exactly sure what is the story behind the change, but according to the schematic information page it was removed due to not being needed... I would say as it is meant to be assembled into enclosure and we nowadays pretty much sell those boards only as OAK-D which is enclosed product.
Later on we also moved to producing only one type of the PCBA which was internally named BW1098OAK_RME* and
yes we would want to update the documentation and also remove OAK-D-PCBA to be a separate product as it is more or less just a subassembly of the OAK-D.
Thanks for pointing this out, and hopefully not to much of inconvenience was brought in with this.
If you need the OAK-D-PCBA board with AUX connector we could look up if we still have any in stock somewhere, though I can not promise anything at the moment....