I'm not really sure how to do formal testing but I have played on that map a lot and I have not really noticed the AI getting confused ever. It seems to be able to find every nook and cranny.
I have noticed if you are in the top right corner spot you can confuse your troops if you don't pay attention and click to send them somewhere right on the outside edge of your home base. If anything needed a little reshaping it might be that. But the AI doesn't get stuck there.