It makes the applicant seem to be inefficient, difficult and unable to perform assigned duties. If hired, would the person really follow the required safety procedures and best practices necessary to do a good job?
Too many people tend to "fly by the seat of their pants" in a world that has grown very demanding and exact. We cannot afford to "wing it" and learn as we go. Efficiency and dependability are the hallmarks of a good worker and successful person. Give it a try. Make yourself a better employee or potential employee—follow instructions.