In 1974 and many other years there will have been heavy rain when aircraft including the type F28 have landed, but without incident.
So in this case something went wrong, either pilot/s error or a aircraft malfunction.
So if it was pilot/s error that caused it, we can only use the information that they give to rectify future incidents of this type. If they have messed up how can their information be credible?
We all know it is often several factors that lead up to an event, so it is very possible these pilots know mostly why this incident happened in 1974. But it is highly probable they missed 1 or more events that built up to it.