Request did not close the Requested Item and the sc_task closed.
The stage of the workflow is not set to "Completed"
Once the RITM is closed, the business rule that triggers the REQ to close is "Close Parent if required"
The condition of the above-mentioned business rule to run is the RITM's stage should be "completed" or "request canceled"
Since we are not setting RITM stage to "completed", the above-mentioned business rule does not run and therefore the REQ is not closed and is still active.