Haven't seen/tried that particular recipe, but others I have tried over the years gave mediocre results. I doubt a pro bakery selling croissants is anxious to give away for free online or in a cookbook a recipe that is the foundation of their business. Likely they have perfected it over time and aren't likely to give away their secrets to success. TV cooking shows also show pro bakeries using equipment like a dough sheeter to give the layers consistency which is likely not something you have at home.