The Causality Program—news of Melowenjay's death was known by the Matrix right away.
Remember, Melowenjay was one of the great generals under her command.
Theoretically, with the [Causal Traits] and the program network covering the battlefield, he should have been the hardest one to kill among all the Mythic Bodies.
The problem was that the area where Melowenjay was located kept sending out a mass of error codes, forcing the Matrix to shut down the program network for that area.
This also resulted in the inability of the program life to transmit itself back to Makoms City in times of crisis.
"Melowenjay, a program even I find difficult to handle, has actually died here... The entity that battled him saw through and could interfere with causality."
Such news of death caused the Matrix to feel an unease.
At the same time, the entire Makoms City entered a 'full energy consumption' mode, mass-producing a large number of Terminator units.