Other stupid things I remembered...
Earlier in the season we see Vadic scared of Mysterious Hand Boss. But here we find out the Borg Queen is a pathetic broken mess who has to rely completely on Picard DNA to actually do anything. So what power did she have over Vadic?
They make a big deal about the Starfleet ships being NETWORKED and how that's a vital part of the Borg plan. Apparenlty this networking is important because it lets all the ships fire as one at Starbase? But...The Borg have a hive mind. They're already networked! They can act by one by default, they're Borg!
There was probably a third thing.
Oh that's right, Floaty Head threatened her people. It was along the lines of her race and world would be rendered meaningless, or something.
Also, how long was the Mega Cube parked up in Jupiter? The Titan and The Enterprise both detected the cube. No early warning system or any stray sensor sweep in the Sol system pick up any anomalies beforehand? You'd think security would be pretty damn tight when you gather every ship in the fleet in one place.
I would forgive a lot of this if the story were cobbled together competently. But no, we had to do a goddamn mystery box which according to NuTrek rules can't be opened until the penultimate episode and then the writers slam their foot down on the plot accelerator.