We have yet to read any official information about Boeing simulator trials on this case, but my little finger tells me that certain Airline 777 captains, flying speed instead of glide slope managed to grease it just on the runway or slightly before with a much better controlled rate of descent.
Nobody is lying here, maybe some information is a tad incomplete.
Great job from the Captain thinking about reducing the flaps setting, but is it wrong to question why, as aware as he was, thirty seconds before touch down, of decaying speed, why he elected to let his copilot fly the glide slope to VSS.