I don't know that it's helplessness, I think it's genuinely difficult to notice when a product shrinks in size by an ounce or two and when a chemical composition changes. You probably make one batch, it fails, and now you have to research the size of the previous box and the size of the new box and do a bit of math. It's doable, but also, that's hoping the cake mix hasn't changed chemically. Research and math and experimentation is not zero effort.