Oh, that's Hood River County for ya. (my hometown)While I don't doubt for one minute that the diver knows what skeletal remains look like, and likely clothed at that, LE isn't confirming the find (understandable, that info will come from them when they feel the time is right) but I love that they said the case was still under investigation.
From your link: The Hood River Sheriff’s Office would not confirm Friday that human remains had been found. It said the case was still under investigation
I'm reasonably sure the whole thing went, after they tried and failed to pull up the car, something along the lines of... well, we don't have the budget to keep trying to pull this car up, but if you find anything, let us know... and sooner or later it'll get through the state lab backlog, and we'll let people know if we find out anything interesting. Maybe.
IMO, of course...