Lets remember that with the CSS Hunley no attempt was made to raise it until everything - organization, funding, people, long-term facilities, conservation plans, and custom lifting fixture were in place. Then, and only then, did they recover it.
Sounds like they are doing the Maid of Harlech all backwards. If so, they will end up with a lot of scrap and finger pointing. Not only that, an aircraft that has been buried and filled with seawater/sand is going to weigh more than a steam locomotive, and be as delicate as a tin toy.
Where do you get the idea that anyone is 'doing' the 'Maid' at all? No one is 'doing' anything, so far as can be determined it is all talk.
The point to me is either do something about 'Maid' or let it go - nature will finish her claim in a few more decades.