Having a huge F5 big IP customers using exclusively F5 SWonHW products and not exposed to XC, is an opportunity for F5 if we manage to provide added value for Visibility of their deployments as a whole and getting alerts, telemetry and recommendations.
Today, customer doesn't use BIG IQ for anything but for licensing under FCP contracts. Some customers uses BIG IQ DCD, however, is minimal.

Having enabled a free or low cost module within XC for traditional BIG IP users, will help to view Traffic Capturing: Troubleshooting Application Behaviour and eventually open door for other use cases.

Today, customers uses Prometheus for monitoring some areas, but that doesn't cover all use cases and doesn't add value to F5.

Not being an expert in XC, for disconnected environments, we could leverage CE deployments on premises to point XC and BIG IP to get rich data to be consumed in XC dashboard.