Not sure if accidental or not, but I can definitely explain why the fonts on that map are still in Akko. This product was only shown once on a random I2 in 2015 (which I have attached a screenshot of below). The reason this product is in Akko is most likely because TWC did not intend to update this product to have the new Roboto font and was most likely going to sit unused until it made its way to our I2s yesterday.
I wonder who posted that picture? I presume there's no video anywhere, but I have to wonder how long that IS2 showed the map. It says "Tomorrow's Forecast" and the time on the paused DVR shows 1:18p with the program being "Highway Thru Hell", so that had to have been on a weekend, but I keep wondering if it showed that instead of a "TOMORROW" text forecast, or in addition to the 3 text forecasts, or if it even showed "Today", "Tonight", and "Tomorrow" on maps instead of text. I'm guessing this was also a glitch, though it wasn't a nationwide glitch, as I know mine in "Saint Louis" didn't show those maps anytime back then. It makes me wonder if the WATT IS2s have multiple flavors built in to show forecast maps for different periods, but only the one without the maps is supposed to be used, with ones with the maps being accidently used on this one IS2 back in 2015, plus nationwide this past May. There's also a "Now" map built in, but was never used once, not even by accident, at least to my knowledge.