Red Hat supports what is shipped. But mind spring-dm is deprecated in the upstream Apache Camel and its NOT recommended to be used.
JBoss Fuse recommends using OSGi blueprint on the JBoss Fuse / Karaf based application server.
However there is some work in the upstream Karaf community to make Spring XML files automatic transformed into OSGi blueprint format so users can use Spring XML style but at runtime it runs as OSGi blueprint. That is still in development upstream and are not in any official Red Hat product at this time of writing.