ANA B787 "interesting go around"
 

My guess?
It might be a pilot flying who is used to operate from the other seat. (new captain in the left seat, maybe?) who for a go-around is used to go right hand back, left hand forward. tI you do the same from the left seat, that's what it will look like.

Well, it happened to a friend of mine. (No, not me :) ) He was an experienced A320 f/o and in one of the first sessions of his left seat sim training training he did exactly that, when he had to perform an unexpected go around.! Luckily it was in a sim and you can bet he never made that mistake again.
Another friend of mine is TRI/TRE for the biggest carrier in the Middle East and has seen it happen on two occasions in the sim.
I would guess that sidestick a/c are more prone to this happening then Boeings.

I wouldn't call it incompetence. It's a wrong, but instinctive reaction. I would think experienced f/o's are even more at risk then less experienced ones.
I think it could happen as well to experienced captains who, after many years in the left seat, become TRI or LTC and find themselves in the right seat again.

I understand it can happen and not only to 'incompetent' pilots.

As far as I know, it was their first ever line training flight in the left seat after being an experienced FO in the RHS. Obviously classed as a VERY scary brain fart, but a brain fart none the less and something that was (hopefully just once) unavoidable no matter how much training they'd done in the simulator.

Folks,
I concur with flyingins about Narita, based on personal experience. A number of aircraft have been damaged, with at least one hull loss that comes to mind, due low level turbulence/shears.
Tootle pip!!

Slowest landing I've ever experienced - TG from Seattle to Narita, many years ago.
Must have had 100 kt on the nose.
Looked like I could have hopped out and jogged at any point in the landing.

Later in transit lounge, cloud passing about 10 metres over the terminal building was just a blur.

Well, I'm not convinced. In my career I've never experienced, seen or heard of low level turbulence causing such a big and sudden pitch change. Up or down drafts ok, but such a pitch change? Never!
We'll never know for sure without having access to the FDM data, which won't happen. It think my explanation is the most plausible, but other causes can't be excluded, of course.

The Boeing symposium I attended was quite interesting with focus on aircraft flown by the company. Here is what they said on one particular subject.....

"The 787 aircraft fuselage is flexible and vibrations can develop(called Body Structural Modes). These vibrations can be transmitted by the pilot to the control column(known as Airplane Pilot Coupling).

There is a new section in the 787 FCTM about Body Structural Modes.

The 787 has a Vertical Mode Suppression function as an integral component of the flight control system. It is active during manual flight in Normal Mode and Landing Flaps manual flight for the 787-9 and in Normal Mode and any flap setting when below 315 CAS on the 787-10.

Note: Enhancements to the 787-9 VMS with FCM CBP5 SB787-27A0044, released December 18, 2018.

It is suggested to keep a relaxed grip on the controls and avoid sharp or oscillatory control inputs."

The unforeseen interactions of parts of a complex system is an interesting topic. When I was flying the Extra 300, in high speed descents the tiniest bump of turbulence would excite a yaw oscillation that would continue indefinitely, fed by my body swaying left and right in the seat and pressing alternating rudder pedals in phase. So I would have to stiffen up my legs and it would go away.

Or, the CRJ 700/900 equipped with IRSes, at or near idle N1's, the fan excites a harmonic of the IRS mounting, which sometimes causes about a 4Hz pulse of the stick with autopilot engaged. It's in our manuals, as long as it's not "excessive" or causes pitching of the airplane, disregard and treat as normal.