The documentary missed a vital piece of work done by Richard Godfrey. Planes interfere with long wave radio and that data can be used to track their flight. Based on that and some analysis done by an Oceanographer, the predicted location of MH370 is c.100 miles south of where they searched for it.
Come on netflix, instead of pushing implausible conspiracy theories of Russians on board taking the plane over and accusing people of being Chinese and Russian agents, without a shred of evidence do a bit of proper investigative analysis.
I also find it quite upsetting showing Chinese people in distress and grieving; I wonder why you did that?
Pushing conspiracy - look up Occam's razor.