Yeah, that's understandable. There's been some confusion between Vlad and Bain anyway, even at Overkill. I think the most recent patches changed it, but for a long time the voice lines in Jewelry Store indicated that Vlad was the contractor of the heist, and not Bain. This would make sense, as Ukrainian Job is merely the Pro version of Jewelry Store, but alas!
In any case, the voice lines in question are Bain's voice lines, correct? I don't seem to recall Vlad having any lines in that heist, but I could very well be mistaken.