It isn't "slightly depressed" and if it was moved to a spot out of the water then what difference does it make? Sand dries - why would it necessarily be waterlogged? The part was photographed in 2019. Is the idea that someone is making fake parts and passing them off as aircraft pieces? I would think that the authorities involved would have done the authentication or exposed it as a hoax - there seems to be no benefit to hiding the most likely crash site.