Regarding the press release
If Geo-whatever are so convinced that their info is credible, why are they asking somebody else to put an ROV in the water to prove or disprove their assertion ?
It would indeed be a major breakthrough is they had found the wreckage, but one has to wonder that given the prospect of a global headline hitting success story, they don't put their own money where their proverbial mouth is and fund an ROV to examine the site they have identified.
The press release was smoke and mirrors.