People here are not arguing to exonerate the crew!! They just want the truth to come out. WHAT information did the pilot see versus WHAT was ACTUALLY happening. Both may or may not be the same.
The families will be angry it is taking so long, I know that I would be. However, the families will want the investigation to be thorough and accurate as well. I can only imagine what they are going through.
Here is a question for you all out there: What do YOU want from this investigation??? Someone to blame? The exact events? or possibly to make sure the likelihood of a repeat ever happening is reduced?
We all want to see all of the above, but different groups prioritise in a differing order. It takes as long as it takes.