Captain did a great landing,
And he did nothing wrong..
But the engineers might be abit worried, center hyd failure should leave the gear able to gravity fall as long as there is electrical power available, ie if you have an unlikely complete electical failure before the battery is gone lower the gear, the up locks are controlled electrically.
So a center hydraulic failure will not leave the aircraft in a gear up situation.
Boeing paid people alot of money to think this through, and its never happened before, the imparla's an old girl now and this is a first.
767 VS 757 hydraulic systems are very different.
Well done to all the crew.