This building contains a church, but it almost certainly wasn't built as a church. For the building-tag, the building's original purpose and appearance counts, not its function.

If there is a congregation here, use amenity=place_of_worship.

By the way, did you read the message that accompanied your ban? Could you take some time to participate in this discussion?

https://community.openstreetmap.org/t/blind-qa-edits-tagging-qa-revert/125483/

It would be nice to hear from you that you understand the issue at hand there.