Ideally we should have offloaded players like Rojo, Jones, Darmian and others before Smalling but on the other hand, you can only offload players who are wanted by other clubs. Also this should be great experience for Smalling, not many English/British players play outside PL, so he can enjoy different style of football, if everything works out then he can make it permanent. From player point of view, we are anyways not challenging for the league, still in rebuild phase. He will be 30 in November, played 9 seasons for ManUtd, won everything at club level except CL. So he can at least try new leagues.