I thought it was an excellent origin story. Each to their own, I guess.
The entire novel line spins off from Destiny now. No way is it ever being retconned away!
Please. When they need a sales boost, they will be trumpeting the return of the Borg, loud and proud.
What sales boost would the Borg bring? For the casual audience, maybe, but that crowd doesn't read the books and never will. The book crowd are hard core Trekkies who are, by and large, sick to death of the Borg and regard their extinction as an "about damn time" sort of thing.
Trumpeting the return of the Borg, loud and proud would lead to more groans and eye rolling than anything else.