Clearly the opinion of a Captain is unreliable and even a Heavy Landing Check down route may not determine any structural damage, for instance to the keel.
In the incident subject of the report you link to the captain recognised that he had made a heavy landing. The engineer on site did not recognise some of the indications of airframe damage despite damage being in evidence. The damage was recognised when a further check was made back at base.
I am not sure what your point is.
Ham Phisted in post 44 alludes to the "work ethic and culture of some work groups where the first port of call is to the union". Again another serious libel.
A statement has to be untrue to be libellous. Anybody with any experience of working within BA would understand the statement. If you were part of the group alluded to then it would be natural to deny such behaviour.