I don't think Hitech wants a refresh button in there, to prevent ping disruptions by hundreds of folks all at once, trying to get into the arena they want.
That's why when you get dumped you don't return to the lobby screen, he said he built that into the game on purpose to add a delay for when folks try to reconnect. Have to think that if there was a "refresh" it'd be used 100x more often than the "connect" button was.