You zerged, thats all, Gusta has Bastok as Dominant one second, then minor the next, its very easy to take over an area if the opposition cant actually do anything about it, the first I noticed that Sandy was making any inroads into Gusta was 10 minutes before update when Bastok was still dominant.
A /sea of Gusta and Saru at the time showed only a couple of people /anon, and only a couple of Sandys in the area, it will be a lot harder for Sandy to keep hold of Ronf for a long while, the Windurstians are going to turn Ronf into Ronf~aru, cause remember, last week Bastok held Ronf, week before Windurst almost held Ronf, week before that Bastok almost had Ronf.
Therefore, the simple conclusion is, Sandy has no power, unless they zerg in the final minutes.