I don't think there's an answer. But it does seem an odd choice, and a bit too distracting to qualify as one of the devs' private naming jokes. (Also Known As The Old Smaug Himself, the Betty Netches of the Skate Park, etc)
I'll go with the concept of a pastoral utopia or we'll be having an endless argument over which green spot on the earth named Arcadia the Ascadian Isles were based on.