Well said, Mike.
It's worth quoting the MATS procedure:
"When an aircraft requests permission to enter controlled airspace for the purposes of landing at the associated aerodrome or transiting the airspace, it may not be possible, for traffic reasons, to issue that clearance immediately. In such situations controllers shall advise the pilot to remain outside controlled airspace, when to expect clearance and give a time check"
...which implies at least identifying the aircraft, providing a relevant service initially outside CAS, and informing the pilot of the situation - not an immediate response of "ROCAS."
So where have the instructors (OJTIs) got this idea, if that is correct? Not reading MATS or from NATS?
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