In agreement because having seats pockets means they get overloaded or junk forgotten in there, additionally nothing worse that picking up an inflight mag to find it has been scribbled across or half pages torn out.
From a lean perspective having no seat pockets is a great idea, no need to have to empty rubbish from them, simplicity in terms of no stuff left behind, hence avoiding an industry of lost and found, faster turnarounds and at the end of the day the less complexity there is the lower the costs, hence lower ticket prices ...
EI-BUD