The article talks about how this was to do with their 1/3 scale model. I guess the relevant question then is if the "new model" is just the old 1/3 model scaled up, or if there are important differences. Are they still using a viewport that's not certified for the depths they're reaching? Are they still using flammable materials? Do they still have a culture and pattern of covering up and lying about safety?

If there were relevant changes to the new model other than scaling it up, it'd need to go through a much lengthier certification and testing phase.