They have not recovered all the bodies.
In-flight recorder data analysis takes time, lots of it. It is not like a tape-recorder and you hit play-back.
Raw instrumentation and engine data and (if lucky) some cockpit recordings, they all need to be extracted and assembled and analyzed. . .and that takes time to get a picture of what happened, in what sequence, what failed or didn’t, and what flight control inputs were done and if pilot initiated. . .all hard to piece together.
There is not a single place where the data is “played-back.” Need the OEM experts, from airframe to engines to the various instrumentation companies, they all have their areas of expertise and they are the ones that review their portion of the data. Huge effort.
Again, this is not a tape-recorder and all you do is hit “play-back” and the entire flight is re-created.
Give me a break. This ain’t my first rodeo. I’ve been around the aviation industry all my life. Your excuse doesn’t cover the cockpit voice recorder. Go apologize somewhere else.
Honest question... Why?
It seems a program could be written to make the device a plug and play with a 3d simulation of just what happened while the voices of the crew give the actual narration. This isn’t the 1960s any more.