It's not only that is was hard to reset, but that the front lines rarely moved from their starting positions. So you would log on for a week or more and find not only the same map, but the same few fields being fought over.
It was also badly imbalanced, with one border having the famous campfest which sucked GVers away from the other two borders and a gap through the mountains at A1 but with no similar gaps at the other two borders. Other maps have balance issues, Mindanao springs to mind, but at least they are only up for a day or two.
Trinity should only come back when HTC fix its issues. To avoid the frontline bottleneck they should lower the border mountains to a reasonable height, say 7K, add one or more gap fields similar to A1 at the other two borders and put a few island bases in the border seas. Also either move the campfest spawns to tank town or at least balance it with two more campfests on the other borders.