In that moment where Azief mobilize the Time Laws, all kinds of existence in the world is alerted of Azief presence in the world.
Before, Azief still had reservations.
But after knowing certain things and after weighing the pros and cons, Azief also believe that nothing bad would happen to him and Katarina even if he exposes that he already returned to Earth
It is always a gamble.
Azief did not forget that there is a possibility that all that he had heard and seen are all a conspiracy.
He would not put it pass the other Great power to hide their strength and pounce on him when he least suspected it
As for his stunt of stopping time, his presence has already been noticed.
Of course, his presence could only be noticed by people of the same level or people whose level is above him in the world.
Jean probably senses him. And he senses Hikigaya. Those two probably would not say anything to the world.
