It costs $2 to fix this issue.
http://www.cliffkeen.com/wrestling/accessories/hg2s58-e58-headgear-two-slot-strap-holderArguing about the silliness of the interpretation of the manufacturer rule won't change it. It's been in effect since the 2011 season. Wrestlers have already adjusted just as they did when laces began to be required to be secured, and hair coverings had to be attached to the headgear. It isn't a big deal.