I didn't see this exact recipe so I wanted to post it
Using boxed cake mix as a shortcut for homemade dough changes the structural chemistry of traditional cookies by adding pre-blended leavening agents and starches that guarantee uniform rise. Relying on pantry fundamentals keeps ingredient costs low while producing reliable batches from items already sitting in the cupboard. Transforming commercial mixes into structured drops requires careful management of moisture and heat to avoid common pitfalls.
Over-mixing the batter develops excess gluten from the cake flour, leading to tough rather than tender cookies. Proper cooling prevents the high sugar content from crystallizing into an unpleasantly hard texture.