As a religion with tens of thousands of years of history, the Church of Light is riddled with internal factions, some of which are at odds with each other.
The term heretic was once specifically used to refer to dissenters within the same religion, and often, heretics are more loathed than heathens.
After the disappearance of the Gods of Light, outsiders perceive the Church of Light to be united and firm in their beliefs, but anyone sensitive within the Church can sense the undercurrents behind the scenes.
Even someone as innocent as Shamara could feel the disappearance of the Gods, wouldn't others? Among the numerous Saintesses of the Church of Light, why was it only Shamara who stepped forward to make a fuss? Where were the other Saintesses?
After the blockading of Heaven, one Holy Spirit Angel after another was handed over. Without the Holy Spirit, how were the other Saintesses able to summon a Holy Spirit Possession?