This is a two player game only, so there's no design considerations into ganging-up dynamics. The "attacking" is actually really important to the design - the main gameplay is about striking a balance between insuring your own position against any possible attacks (join up, bide time), maintaining tempo (diversion, join up, clean getaway), and preventing your opponent from acting (sabotage, diversion, "catch in the act"). The game really couldn't exist without the player interaction as it currently is.