Sure, but the message - that if it's a problem for Red Hat's Ansible team or Red Hat's mainframe Linux team, they should be doing the work needed to make it not

Sure, but the message - that if it's a problem for Red Hat's Ansible team or Red Hat's mainframe Linux team, they should be doing the work needed to make it not a problem. Ansible Tower subscriptions aren't exactly cheap, and neither is RHEL s390x. If there's not the fat to be uplifting the core infrastructure needed to run RHEL or Ansible on Red Hat's products, that's most likely a choice.