As commanded by Jin, the System began to send out 'bait' to get the remaining Pandarens who had yet to participate in the current 'raid instance' to be in it. Now that they had officially cleared the threat, all Jin's Army left was the cleanup.
However, it would be stupid to name it in such a way to entice the Pandarens. Instead, the System named the remaining Demon Rat Warriors as the remnants of the Demon Rat General which Jin had defeated on the live stream.
But because Jin's Army was controlling the situation at the Demon Rat High Command, it would be hard for the cultivators who did not have that many waypoints created collectively to be able to participate.
Thus the System purposely got Jin's minions to tag them so that it could forcefully teleport the Demon Rat General's Remnants to other parts of the city for the Pandarens to search. The System had advertised it as the final ditch attempt for the Demon Rat General to respawn again.