What ever the cause of engines failing to respond at 600 ft the pilots did the best they could do to get it over the fence and the airport level property to put it down. It saved a lot of lives and they should be commended for it. We are required to be stabilized on our op specs IFR and VMC approaches and obviously if we do that loss of thrust control will not get you to the runway if thrust is low.
Flying light airplanes it was easy to keep the pattern tight so you could glide in but once configured and on speed no wide body could make the runway with a loss of power.
No one established on an ILS could land from 600 ft properly configured with any loss of total power. If one engine was fully functioning, sure. In this case neither engine would spool up. The captain said that.