Yes I am B777 rated ( not current ). At 600' in landing conf. the crew did the right thing in my humble opinion.....drag from gear doors, increased speed ( that needs an alt. trade off ) it is best to live with what you've got.
What was most impresive to me was the dissipline to honor the speed, the biggest temptation will be to stretch the glide, especially so close to the runway. This will lead to stall, stick pusher etc. and uncontrolled crash.
Hat off to the handeling pilot
P.S. Don't believe everything you hear / see in the media regarding config change etc.