Won't this also be presented to pilots on their small info screen, the one which prints them out weather and flight info? (ACARS [0]) Here's another example [1]
I'm just waiting for someone to post a picture of this message showing on a glowing green display somewhere.
edit: https://i.imgur.com/Avn6Cnm.png; that's just the output of curl, there's a bit of html above and below the message but it's a really straightforward page.