There are constant references on these posts to this being a 'bounced landing'. It wasn't. This was a decision to go around from a smooth but long landing. It was not the standard G/A, neither was it the standard 'bounce' that may have been previously practiced. This was a case of treating it like a touch and go but delaying the flaps until a safe rotation was made with sufficient thrust to safely climb away. The only concern would be ignoring the config warning as you climb away with landing flap, something the aircraft will happily do if done correctly.
No Airline can effectively teach for every possible scenario. They can, however, start by employing the best pilots and retain them by offering industry leading terms and conditions. You then recruit the best within this pool to become trainers who have enough experience and knowledge to encourage resilience and airmanship within a framework of robust SOPs, all the time being supported by a Company ethos that's not overly restrictive or prescriptive. It needs to be a genuine 'Just Culture' with effective support from Senior management, the CP's and their deputies.
Nobody for certain will ever know the reason why the Captain initiated a straightforward G/A procedure, other than the Captain himself. However, it would not take a genius to reason that many of the above mentioned factors may well have played a role, one way or another.
Harry