A hero on the Hudson River, or good luck?

To what extent (até que ponto) do you agree or disagree with the following statement: 

“Even though the pilot of this aircraft has performed a successful ditching he was not prepared to perform this maneuver because it is impossible to rehearse it completely.”

Attention to pronunciation of words beginning with H and R:

H                             R
Hudson                    River
Hail                          Rail
Hall                          Radar