User blog comment:Roranoa zoro/Defeating Logia users without using Haki/@comment-10860731-20130707112056/@comment-10543621-20130710065837

It was more of the 'realisation of death' that paralysed Monet. Zoro basically showed Monet how terribly far apart their powers were and how easily Zoro could have killed her, had he chosen to use haki in that attack. The realisation that she could have easily died apparently stunned her.