And to answer your question after digging around a bit internally ... this is working "As Designed" at this time but would we welcome feedback in an issue.
Also that is not the correct command to revert to basic not sure if it will work the correct command is in that thread.
$ curl -X POST -k -u elastic https://localhost:9200/_license/start_basic?acknowledge=true
Enter host password for user 'elastic':
{"acknowledged":true,"basic_was_started":true}
Apache, Apache Lucene, Apache Hadoop, Hadoop, HDFS and the yellow elephant
logo are trademarks of the
Apache Software Foundation
in the United States and/or other countries.