Two things:
1) this isn't atheism, so that really doesn't apply here.
2) forbidding the formation of new religions is not against the rules. Nor is there any rule preventing a realm or religion from monopolizing the realm/area. There is an IC law specifically allowing realms to forbid the formation okf new religions. How is using it in any way an IR violation? The IRs are fairly well-defined. Which rule exactly do you think this breaks?