I thought its established that Kujirai is the same as Kujirai-B, just that she's lost her memories. So how could snake dude and Gwen have known Kujirai-B died if they know shes is not a clone due to having the same moles as Kujirai-B? Unless they're referring to her "death" as her losing her memories, and turning into current Kujirai as a result.
If it turns out that way, feels like this chapter is just to drum up some shock. Still, enjoyed it and liked the parallels to ch.27.
Kudou definitely got some explaining to do.
(Edit, got the names all messed up)