Terran has already stated they don't want any land out of the war. Unles Kabrinskia really bungles something, they'd have a hard time changing their goal that much. It is something that would surely bring in Kabrinskia's allies.
Like Kabrinskia burning their regions to the ground making them go rogue, perhaps Asylon's as well? If they don't go offensive over that they are really wimps.