Parks and Vescovo also confirmed just over a year ago what I stated above. If you ignore the media hype and those trying to magnify it to profit off of it, the rate of deterioration is nowhere near as bad as people are making it out to be.
Is the wreck deteriorating? Yes, as does most metal submerged in salt water. Will some parts of it collapse sooner rather than later? Sure. But the whole idea that Titanic will vanish by 2020, 2030, etc. is rubbish. To make a set-date claim like that is not feasible.
From a quick search, I see that the bulk of the research was done by a Canadian/Spanish research team over a decade ago who identified the predominant bacteria at the wreck site as novel and then was followed up by a Dr. Henrietta Mann who ultimately made the claim that the wreck will soon be "a rust spot" at the bottom of the sea (I've read her paper). Everything after the identification of the bacteria has been mainstream media publications (Daily Mail, the Guardian, etc.) all saying the Titanic will soon disappear. You have to filter out the signal (hard data which is very little) from all the noise (which is all the media talk).
By the way, Parks is very accessible through his Facebook page and has had this discussion many times and would be happy to answer questions. As someone who has been to the wreck multiple times across decades and has spent countless hours with historians, researchers, scientists, etc., his opinion is far more valid.