As you know, Louis is from Luxembourg, a small country between Germany, France, and Belgium. When he wrote the baking instructions on the packaging, he wasn't aware that his American friends are used to measuring quantities in recipes in terms of cups. He assumed that giving you the information in ounces would do the job.
After getting initial feedback, he learned that some people messed up the recipe. He doesn't want that to happen to you, which is why he has quickly revised the instructions.