Carroll was, after all, a man of the Church. No matter how severe the split between the Angelic Host and the Holy See, no matter how intense the discord among the Holy Angels of the Host, it was ultimately an internal family matter.
After Li Muchen had just made it clear that he intended to demand justice from the Holy See, Carroll had deliberately brought them here.
His explicit intention was to have Li Muchen cross paths with the Holy Light Knight and provoke a conflict.
Chapter 390