No, it is not the score. Of course you will always find the typical well known psychopatic score-vulcher almost licking the runaways over and over, these cant be found anywhere else than vulched fields, and are so focused in their vulch session that offer the easiest targets to any enemy reinforcement comming from a nearby field, but these are a small minority.
IMO, the problem is the furball instead the score, all is initiated with a big furball between two fields, then the furball continues retreating towars the field of the outnumbered team. Meanwhile, the pilots involved into that furbal got totally focused into their base and the target base, and they cant even open the map to find out what is happening at the other front. This is the usual case with fields A1 and A5 at Trinity or field A44 at Mindanao, they act like black holes. Every map has some of these holes.