Of course your link is to one of those crackpot eco group propaganda sites. Though one that clearly hasn't bothered with any muck-racking for 5 years.
Shell have been leaders in the application of just culture for years and is well known for funding much of the prior groundbreaking theory at universities in the UK & Netherlands. Shell has made much of this freely available to the world:
Hearts and Minds - Home
TB. via PMs has also reminded me that CVR's of course already would be used as evidence in court in the event of suspected suicides such as Silkair, Egyptair or attempted suicides by crew. A rare, but sadly not unheard of event.