Yes, but the key issue here is that the house has not closed yet. The sellers want to push back the close, which is not a good move, imho. These sellers are either very disorganized or just playing a game with the buyers. Shoot...they can choose to not even show up for the close. Getting the house to close is the hurdle here.
I'd insist on an ample escrow to be held until after they vacate and the buyers (DD) inspects the house for damages. If the sellers don't want to move and are forced out legally, they may trash the place.