I think we're all forgetting that "Azami" (probably an alias) still has a gun to Marika's head, and is very likely to (try to) shoot her once she finds what she's looking for. If anything, I suspect she's part of a faction who wants to:
a) keep the entire Suzuran project under wraps, which means tying off ALL loose ends, or
b) wants to exploit Marika as she may suspect that this Marika might have the ability to "dimension hop" just like her parallel version
A doesn't make much sense in the context of chapter 10.1 though; why even talk about it at all if you're just here to finish the cover-up? So I'm leaning toward B.