The drop into Sierra Leone was not tactically necessary, but an impressive bit of one-upmanship nonetheless. Suez probably was the last necessary operational insertion by this method so, politics, posturing and tradition aside I can see an argument for saving a large amount of cash by ceasing to train and maintain the
PR (donning tin hat and flak jacket). More esoteric forms of parachuting remain essential military skills, and the interesting question that would remain following a decision to suspend parachute trg of infantry is what type of pre-employment trg is relevant to those about to utilise esoteric forms?