Reread my post and realize I in no way was I trying to be snarky or condescending as you just did. My point is I still have my 777 Boeing FCTM and FCOM in my hands, and yes I was trained by Boeing instructors in Kent/Tukwilla, nowhere does it say engaging the AP at 400ft was SOP, however at heavy weights it would be very wise to do so. I agree with everything else you said, crew most likely did a good job.