Poor documentation of setting the context-root for a webapp

I wanted to change the context root of my application in the Docker image and the procedure described in the guide did not work.

https://docs.wildfly.org/17/Developer_Guide.html#configuration-through-deployment-descriptor

The problem can also be reproduced in the local development environment (Win 10, Eclipse, Wildlfy 2019-06).

However, it works if I create a WEB-INF/jboss-web.xml instead of WEB-INF/jboss-webservices.xml.

Is the implementation or documentation incorrect?