Catching a late sink by manual thrust in an A330.

[hans brinker]

Disqualification:
Not on A330 but I think A320 is similar enough.

TL/DR:
Assuming auto thrust was on, the pilot should have pulled back the thrust levers "a bit" (somewhere between 1.05 and 1.2 EPR, but that is for me), pushed the Auto Thrust (instinctive) disconnect button, adjusted power as required and landed, OR, pushed the thrust levers to TOGA and made a Go Around.

Full story:
On the Airbus the thrust lever does not move with the auto thrust on, but will remain in the climb detent, while fadec regulates power output. The preferred method to go to manual thrust is:
Pull thrust lever back until thrust lever angle matches engine output (there is a blue marker on the engine instrument to help with this), push (instinctive) disconnect button to switch auto thrust off. While the levers are being pulled back the auto thrust is regulating power output with an upper limit set by the thrust lever angle.
If the thrust lever is pulled back to the idle stop the auto thrust switches off.
On the approach with auto thrust on (the norm for most Airbus landings), the levers stay in the detent until around 30' radio altimeter. Then the Airbus calls you a retard and you pull the lever to the idle detent.
This is different from most other aircraft where the power lever will be moved by the auto thrust system, and the pilot can manually override the system by holding/moving the power lever.
On the Airbus there is no approved way of "helping" the auto thrust with manual thrust lever input, if the lever is pulled back out of the detent with auto thrust on, it will generate a warning (LVR CLB) to remind you to stop interfering, Airbus wants it on or off.
If the Airbus pilot needs MORE thrust than the auto thrust is providing the normal way to do it is PULL BACK ON THE THRUST LEVER and disconnect auto thrust. This is not instinctive to most pilots.
Of course there is times were you would need so much extra power you would not pull back on the thrust lever before disconnecting, but if that happened at 60' probably a go around should be made anyway.

If you put the thrust lever in the TOGA detent several things happen:
The auto thrust switches off, and thrust increases (dramatically) to maximum available.
The flight director goes to go around mode (if the Airbus was not in clean configuration), and will pitch up if autopilot was on.
The Airbus will transition to flight mode if in flare mode. You should not land in flight mode because the fly by wire system is not designed to do this.