Yamato: Now with 10 times the OP power of the Fleet of Fog
Well the Fog now has Flagship Equipment, which basically is a teleport beacon for the whole fleet under that particular Flagship. While FE Fog-Kongou may lose a one-on-one with Space Yamato, Space Yamato would likely get toasted when FE Fog-Kongou brings in her whole fleet of attendant ships.