What are the problems with the "A song of ice and fire" series?

[Cikomyr]

Perhaps, but the Seven Kingdoms do have an influential, active state religion in the Faith of the Seven, which seems firmly entrenched in all aspects of daily life and has moral tenets not that far from 'comfortable modern, western' morals.

Take out the "modern" aspect of your sentence, and I'll buy the argument.

The Faith of the Seven is very close to the Western Christian (catholic) church. Part of it is corrupt, part of it is genuinely devout. There are crazy fundamentalists and there are mild-mannered devouts.