This was a statement from Sodano, who is saying what he always said when JPII was Pope. Sodano is about to be replaced by a new Vatican Secy of State, so we shall see if there are changes.
However, in general, the Vatican is certainly not going be be rooting for war, regardless of who is involved. However, you have to read the statement noting that it also condemns the terrorists, it has taken them several days to issue it, and it is the statement of an outgoing Secy of State who has been saying this same thing for his entire career.