At this stage there is no evidence to show why the Captain did not go around. The issue is that punishing this one individual, if indeed he was guilty of some deliberate violation, will lead to an overall reduction in flight safety in the future. This is because reporting systems will be far less effective. It is not just CVRs that are involved, it will include Quick access recorders (FOQA in the US) and many confidential reporting systems worldwide.
As soon as the reporting system is compromised, it loses its effectiveness.
Punishing this pilot for this accident is not worth the price we pay for reduced safety if this prosecution goes ahead using CVR data.