These have been there for years; they also rotate a message reminding pilots to shut down the APUs. Seen it a million times. Or, realistically at least a hundred+ a year.
It's nothing new but disseminating information was a big part of Gordon's push.... always good to re-read From Worst to First whenever you want to know what's gone wrong with this merger. I swear, some management said "let's take Gordon's book and do the complete opposite."