Leaving things to the experts is obviously the "why & how" part of the solution. The trouble is the relatives do not have closure which is why a funeral is held.
Years ago I attended the funeral of the mid air collision between the BEA Trident & the Yugoslavian DC9. The coffin clearly only held bricks but his widow could now seek a solution & move on.
I believe the a/c is close to where the search is/has been processed. The authorities have got some some background help whether from Satellite pings or other tracking by the US or Chinese. With better subs, then I am sure it will be found.