That's why the DC is so high. A spoken conversation at this distance would be like DC 15- the message spell starts it at 25.
Spoiler: Active characters: Show Turi Masakhet, MM Firi'Sar Throshana, ST Jessica Cooper, RoA Frederick Strongarm, AoW Elissa of the Wilds, NS Artaith Forgeheart, Grim Jannis Sotheby, RotR Stvari Inhibiraj, WotW Kern Cooke, DotMD