It's probably because they aren't encouraged or instructed to and the midfield is built to service the front 3
Mixture of this and not having the ability to do it IMO. Coutinho would have plenty of shots from distance because he had the ability to find the net, whilst being there to service the front 3. Ox before he got injured was taking shots from distance. Our style of play hasn’t changed that much in the last year.
For all the hard work Gini, Milner and Hendo put in, their shooting leaves a lot to be desired.