Is that a lot of baking soda and salt? Do these ingredients look weird?

Ingredients

CAKE:

1 cup butter, softened

2 cups sugar

3 eggs

2 teaspoons vanilla extract

3 1/4 cups all-purpose flour

3 1/4 teaspoons baking powder

3/4 teaspoon salt

1 1/2 cups 2% milk

FILLING:

1 cup sugar

1/4 cup cornstarch

1 cup water

4 egg yolks, beaten

1/3 lemon juice

2 tablespoons butter

FROSTING:

1 1/2 cups sugar

2 egg whites

1/3 cup water

1/4 teaspoon cream of tartar

1 teaspoon vanilla extract

3 cups flaked coconut

http://www.huffingtonpost.com/2011/10/27/lem…