I guess it was the latter.
Next question: I wonder whether Albia's really that thrilled with Monahan having become a queen, or whether she's vehemently expressing friendship and offering mentorship because she has no strength at the moment if Monahan decided to fight her instead. It might be some of both, I suppose -- a combination of no strength to deal with a fight, and at least hoping that Monahan might be worth making a friend of.
She seemed to be trying, before the need for this expedition came up, to keep Agatha in England, though. I'd think Agatha would make a better sister-queen than Monahan; she's got proven loyalty, while Monahan has rather the reverse -- not that Lucrezia had given her much reason to be loyal, but still. Could Albia have gotten Agatha the rest of the way to being a Queen in England, or would Agatha need to get to her own Dyne to do that?