I could not say for sure, but it seems unlikely they would not be correlated.
[Should Ciel be concerned? Of course not: Sebastian won't fail him. How he plans on defeating goodness knows how many Reapers while being powerless and suffering from memory loss, or to break out when he can't even break a measly ankle manacle? He'll... deal with that somehow when it becomes relevant. There is no alternative.]
Come what may, your safety is guaranteed.
[For once in his life Sebastian sounds serious when saying this, however - no smug, confident smiling. It's not a boast this time, in such a concerning situation.]