Just watched this.

Ayato did his best, but he was obviously at a disadvantage because of his time limit, and that's what caused him to rush at the end. Not only that, Ayato is used to real combat and did not pay enough attention to his badge, like the secret agent side character said in his commentary.

Kirin too had a huge disadvantage. She managed to defeat Ayato without clashing swords with him. Do you know how ridiculously hard that is? If not, ask a kendo master to defeat someone without ever crossing swords, with both parties knowing that condition. LOL yeah, Kirin is number 1 for a reason.