But The Last Generation summarizes the episode so well. "Last" is being used as in "last week" to mean previous, so what it means is that only the previous generation -the old fogies of the D- can save the day. After all, the youth these days with their brains that are still developing are too interconnected to do anything themselves.
That's what irritated me about that particular plot point.
A bold move would've been to assimilate the TNG crew too. It would've forced Picard into the position of being completely and utterly alone.