Too much time spent estimating the gaps between the gums and teeth. A dental hygienist or dentist should be able to determine if there are any gum problems based on visual observation and minimum probing.
Not enough time spent on cleaning the teeth. Teeth were not flossed after the cleaning. Minimum polishing done on the teeth.
Other than the Bitewings-four films and Prophylaxis-Adult charges, I consider the other charges to be unnecessary.