Moved it there from the water too (i had no ships). Made zero sense lol.Now, this is really something it should not be doing. I don't think it achieves anything by letting you kill a gg. Definitely worth reporting.
Overall the tactical ai is fine though now that ive played more. It seems to do better with larger forces. Its still braindead to an extent, but as far as AI's go its (maybe even damn) good i think