[Bring_Back_Shantz]

Originally Posted by sureLoss

I think it was supposed to be a continuation of the Voyager finale. Alternate timeline Janeway gave the queen a pathogen when she was assimilated. The pathogen then decimated the borg.

To survive, all resources was rerouted to keep the queen alive.

Yeah, they did a really bad job of explaining that.
The Queen said something to Picard along the lines of "You left us decimeated" or something like that.
If she had said "Janeway left us like this", and then one line of exposition from Picard about "When she returned from the D-Quad" it would have been much clearer.