Yes that is a thoroughly shitty job i cant attest to that. Its also a good idea to keep a few extra spots so its easy to rotate dogs from spots that need repair. Many times all it takes is a well placed trench and some leveling with a flat shovel. Good idea to let the spots settle for a month or two after repairs if you had to move a lot of dirt around. If not a lot of times a dogs chain will just tear all the fresh layers back up.