Former insurance agent here (personal lines, so I never dealt with churches, but still)

They almost certainly are. Liability insurance usually excludes intentional harm (including sexual assault of any kind), however there are usually ways to acquire coverage for those intentional actions. On a personal level, umbrella coverage will provide it.

They likely don’t sell specific “Pastor sexually abusing a child coverage”, that button is more there for the victims/their parents to have an easier time filing a claim. Helpful, but depressing.