Not really A.net's responsibility to police individually stolen photos, however they should really take a look into reporting (
https://help.instagram.com/446663175382270) that account, since it appears to be impersonating them. I also found this account after a quick search:
https://www.instagram.com/airlinersdaily/I hate these types of Instagram/FB/Twitter/etc. pages which steal content, because they do tend to attract huge followings and then some end up monetizing it. All off of unauthorized use of others' hard work. Unfortunately, I've found that even if individual photographers report content being stolen, these social media sites rarely take action in shutting down the whole page, even if a pattern of theft is obvious.