Meaningless hype, well let's say rewording it so it will get people to look - notice the emphasis on the 100,000 (when really that's the high end of the posted salary range that starts around 60,000) in the Petapixel article/headline.
But it seems to be a real fulltime job. I checked the Park Service website (and hey they're hiring park rangers too!). Could be a cool job if you do large format and like to travel.
I think it's a stretch to say in the PP article that Ansel Adams had a job like this; saying "Guess what? The same job opening has appeared again: ..." seems inaccurate. Wasn't Adams a forerunner in doing this type work for the Interior? I believe Adams was often contracted by various organizations, media outlets, etc. I think this job is going out photographing for a week or so, then probably in an office the rest of the month getting prints done, doing archiving, reviewing submissions, preparing and doing presentations, etc.