oil filter change

basically jus bin looking at renault workshop manual for 197, now when replacing oil filter is it nessacery to clamp the coolant hose that goes to the oil filter housing plate?
 
It tells you to do unecessary things & sometimes leaves out necessary things, it's more of a guidline i find, when doing my subframe it said to remove front bumper & radiator crossmember, for no apparent reason as the subframe is not connected to the radiator xmember