Not correct. Cat 2 is also mandatory 11 days, however Cat 2’s are able to be appealed.Cat 1 is automatic 11 days. Cat 2 isn't but has to pass additional tests during week
“Only Category 2 head injuries are eligible for appeal of the 11-day stand down.
To be eligible for review, a player must have suffered less than five concussions throughout their career and none in the last three months. They must also have not previously experienced a prolonged recovery from a head knock.”