I am going to take a chance.
IF the other High Cultist started with the same benefits we did then maybe I have taken out his only two commanders.
And IF he was smart enough to start in some kind of port city, then that city must be on the coast nearby.
I am going to take a chance leaving only one spearman in our city. I will have Zag'mi continue south toward me. Hopefully we will find that city badly defended and add it to our empire.
The other high cultist might also have an ally hidden somewhere but if that ally is as far away as ours is then this is still worth taking a chance.