Many wannabes make the mistake in assuming that the T7 is just a supped up version of the B737, B757 or B767. They think they know all there is to know about flying the T7. The B777 has characteristics which can bite you in the arse during landing in strong crosswinds.
The triple wheel bogie with a steerable aft wheels require unique handling which many choose to ignore. The auto brakes and the auto spoilers can surprise you at the wrong time. The auto flight systems in capture mode at light weights/high power combination, height weight/low thrust combination can lead to scary moments too.
The PF on that KLM flight was probably not properly trained in the real B777 ways. Most likely he/she came off a ZFT sim program straight to line training. Not many originally B777 trained pilots left to pass on handling qualities; most are no longer trained by Boeing factory pilots. What we have now a glorified box panel operators.
