Despite being an insufferably difficult man, Vasiliy did have some form of loyalty to his Suit; Silas has faith that that loyalty will prevent him from sharing Deck secrets, though he can't really be sure. Worst case scenario, Vasiliy has to be forcibly returned home.

He'd rather not do that.

Säde's voice wins a warm expression from him, has him pausing properly in her doorway. "Good afternoon, Säde. How are you today?"

They'll need to discuss it, of course, but pleasantries first, and perhaps that bullet can be dodged.