It's ok clock, relax, if it makes you feel better, the Grogar will be too far busy killing each other, whoever is in the west and Prometheans to bother going the far east. 

Also to mention not all gorgar are a "kill on sight" kind. Some even work as mercenaries or are just weird like that :P

Also to note when they do get the east. It'll be insignificant and in the form of small pirate bands.