I don't remember for sure, but I think when I read it I remember people complaining about how they thought that bringing in so many of the different AIs and characters from other parts of the franchise was a case of small universe syndrome.
Yep. The complaints came from TNG fans who had little knowledge of TOS. As mentioned in my first post in this thread, despite the fact that pre-Memory Alpha
lists of characters/actors (from Usenet and GEnie) were a very convenient source of quick research, some TNG fans were scathing that the novel didn't contain footnotes to all of the TOS and "Questor Tapes" references, or a dramatis personae
with the full cast explained.
A few TNG-only fans had enjoyed the book, then got perturbed that they'd missed something when they heard others complaining.
And my point was that picking up a novel and noticing it was full of footnotes can be very
daunting. (Marshak & Culbreath used to use them, but this one would be chock full!) The way that all the AI references were used, it was never essential to have the back stories, but they were very cool little easter eggs for those in the know. I wasn't expecting any cameos; each new one was a delight and, I thought, well used in the story!
I reckon there'd be some early negative reviews over on Amazon. I don't like to wallow in negativity, so I'd rather not look.