It seems like players who turtle can beat players who expand and control more than half the map. In a recent 6-man free for all, I managed to kill my neighbor. When his other neighbor died, I took his spot too, thus owning 3 out of 6 positions on the map. I thought this gave me a good advantage in the game.... but to my surprise, I checked the score and not only did I not have more income than all the other players, one of the players with his small base had more income than me ALL GAME LONG.
Right now, the benefit to taking map control is fleeting: It has an advantage early on, but after ~10 or 15 minutes, there's no point in taking territory. Also, in the context of FFA, territory has very high HEAT (attracts attention) but very low VALUE (doesnt produce any more mass than SCU spam). It seems pointless to even bother with.
IMO SCU RAS needs a huge nerf... the mass production, at least.