The main reason she will lower or increase your protein intake is because you’ve switched body composition goals.
If you’ve switched from a cut to a bulk (or started out on a bulk), Coach Alice will lower your needs to the lower end of the protein recommendations (0.73 g/lb body weight). This is because during an energy surplus state where you have plenty of calories, your body won’t go to your muscle stores for energy like it can during a cut.
If you’ve switched from a bulk to a cut, your protein recommendations may increase and will be set at least to 0.8 g/lb body weight and may even be upwards of 1 g/lb body weight depending on your body fat percentage (if you are leaner, it will be on the higher end of the recommendation). This is because during a cut, your body goes to stored energy. It should mostly go to fat, but it can also go to muscle mass, which is why a high protein diet with resistance training will help to avoid this.