Even when EAP 8.0.2 repository is merged with xp maven repository and xp mrrc only repository, not all dependencies are satisfied.

Example:

In mrrc only repository, in
jboss-eap-xp-5.0.0.GA-mrrc-only-maven-repository/maven-repository/org/wildfly/security/wildfly-elytron-parent/2.2.4.SP01-redhat-00001/wildfly-elytron-parent-2.2.4.SP01-redhat-00001.pom
wildfly-elytron-parent requires org.apache.sshd.sshd-common in version 2.9.2, but sshd-common is only present in 2.12.1 in both mrrc-only and in EAP 8.0.2 repository.

Similar in jboss-eap-xp-5.0.0.GA-mrrc-only-maven-repository/maven-repository/org/wildfly/core/wildfly-core-parent/21.0.9.Final-redhat-00001/wildfly-core-parent-21.0.9.Final-redhat-00001.pom

There might be more.