The Night Raven Servant's greatest advantage lies in 'Shared Field of Vision Among All Black Crows'.
Your crows are my crows, and my crows are yours.
Mu Yuan was not unfamiliar with this pattern. Previously, his black crows and Sophia's black crows could achieve complete sharing. However, this was a special case that was rather rare, due to his use of the Sophia Template. Consequently, the black crows he created were all Sophia-branded Ravens, naturally shareable.
Normally, it wasn't easy to establish instantaneous communication between different units, let alone sharing the vision of the whole group. The Jun, who possessed the divine skill 'Field of Vision Sharing', could only transmit their vision to a single ally, not allowing hundreds to view through a single vision.
But the Night Raven Servant could.
Moreover, a single Night Raven Servant could create over a hundred visual positions, thoroughly outclassing the Jun in terms of vision acquisition.