What I hope it does is take cart friendly out of ratings equations. Mark down a course because not good for my Zucca, dolly with a cooler strapped on it, 3 wheel baby jogger, 2 child double wide baby jogger, Red flyer wagon, folding umbrella wagon, person with 1 leg, wheel chair bound people, people that are training for wife carrying competitions and carry their bag and wife the whole course, blob aliens, blind people. Etc...all the reasons people mark a course down because of the way they choose to transport their 1/2 lb discs.
If you mark a course down for not being cart friendly, you should mark it up if it doesnt require you to carry enough discs to need a cart.