It's pretty simple. Look at the picture. Trucks act 100x better if your gems/ore are to the RIGHT of your ORE REFINERY. If your gems/ore are on the LEFT then your trucks go haywire (programming bug from original game - probably fixable). You will lose time consistently having to manually move your trucks, meanwhile your opponent has a nice easy life and can focus on combat and scouting/guarding/attacking. This is why the "old" ribbon has become known as a terribly unfair map. This is also a truth on other similar maps and is even worse on ore maps. Liquid sucks and is unfair for this reason.