This direct inject is only for the fill. The only recirculating that WP has used recently is on the Catalyst and the Collapso. The first Resource Save washers used a recirculating diverter valve for the spin spray rinsing and its introduction, along with the Catalyst, made it possible for us to once again obtain the valve bodies needed for the Kenmore and WP combos.
Several European brands over the decades have used a recirculating spray. It can create excess suds in the wash also. One great advantage that it had in the 29" Kenmore combos with the large drums was that with the very low water level in the drum and the spray, sheets tended not to ball up and remained open to the spray, even in the rinses, most of the time.