It is good to know that someone filed a lawsuit against any of the involved parties - they also sue One-Two-Go. Otherwise we will never know about the real cause of the crash.
No, it is a Bad Thing.
With court proceedings looming, people will usually shut up about what they know, in order not to incriminate themselves, which is their right if they have been charged or accused.
Trials are always impeding factual and causal investigations, be they criminal or civil.
The manufacturer and the operator of the aircraft, along with airport operators, are the most knowledgeable about procedures and conditions, and court proceedings effectively shut down that source of information. We may now never find out what really happened, and thus be robbed of the chance of learning from this accident to make the future of aviation even safer.
Please see the
Joint Resolution by various organisations involved with flight safety for a concise summary of the arguments.
Bernd