The fact that it wasn't incorporated into civil law didn't mean no one cared about it (also, there were a number of states that didn't formally adopt the Vatica

The fact that it wasn't incorporated into civil law didn't mean no one cared about it (also, there were a number of states that didn't formally adopt the Vatican index, but which had their own similar list, and, where they were Catholic states, they often largely mirrored the Vatican list with some local changes.)