Fair enough, although again I think it depends a lot on which series you're talking about. DS9 was a very arc-based TV series, so it makes sense that the DS9 books should have the same sort of ongoing continuity.
TOS, on the other hand, only featured standalone episodes, so it makes sense (to me) that the books should do the same.
In theory, you wouldn't want a TOS book to feel like a DS9 book, or vise versa. You want to cater to each show's strengths--and give readers what they expect from each particular flavor of STAR TREK.