I agree. I like liu kang but i don't use him. I know how good his normals are.yes liu can outzone ermac. Up close liu's fast and safe strings will be a problem for mac and liu has some mixups he can incorporate at times. Also in the footsies game, b3,1,2 and f1,2 will work great on closing the distance on ermac. Liu's standing 2 is 8 frames and has pretty good distance as well to use in footsies. The best thing going for ermac i say in this mu would be his iafb and push.
Anyone with good normals, will give ermac a problem if they can get in.
Liu is forcing ermac to come to him and then he has the better normals.