Don't understand why you attack the word seriousness without reading the whole text. As I said at the beginning if you are not comfortable with the rules then ignore it, I mean can you change what is the company's rule to suit your wishes?, so applicants must read the rules if you don't like it then don't apply not tell the manager to change the rules, hopefully your intelligence understands that or you are an applicant who successfully makes the manager change the rules according to your wishes.