No, none whatsoever. In fact, as I said, it defies the non-partisan tradition, particularly for the federal government, of consulting meaningfully before changes are brought in and seeking expert advice. For example, I'm not aware of the essential service designation having caused any loss of delivery of essential services or any real risk to safety or security.
Ironically, for a Conservative government in fact forcing workers to the more militant strike/adversarial approach seems odd.