Oil Filter Securement

The hose clamp on the oil filter is an old trick in the world of Moto Guzzi motorcycles. In over 30 years I have never had a filter come off and I have never used a hose clamp. YMMV.
BTW, did I say the filter is inside the engine? Fourteen (or is it 17) bolts to remove the sump and the filter is attached to the sump...upside down. But it can't drain because it is immersed in the oil.
If it works for you, do it.