enforce_storage_engine doesn't block table creation on other nodes (galera cluster)

I set enforce_storage_engine to InnoDB and disable Myisam replication on all nodes of my cluster.

When I try to create a Myisam table on a node, I logically get this error : Unknown storage engine 'MyISAM' and the table isn't created on this node.
But it has been created on all other nodes! In the end, this table exists on every nodes of the cluster but one.