It's always a shame to let the facts get in the way of a good rumor!
Firstly, it wasn't me.
The emerging facts are that the 777 has no g-meter, so measurement of 'g' comes from a complex calculation of ADIRU data. There is no display of this 'g' data to the flight crew either in-flight or post-flight.
The actual approach was from a heavy weight situation (extra fuel due destination/alternate wx) plus a tailwind. A high rate of flare (which was required for the conditions) for the
initial touchdown led to fuselage flex which caused the ADIRU to calculate 'slightly +3 g' event. However, that touchdown was at 300 fpm, which is almost normal.
Please note
emphasis.