Mainecoon -
No offence intended to your pals in approach who generally do a great job - , BUT on this occasion I think they were somewhat lacking for two reasons :
1) The telly-heli had been provided with an NSF number, so ATC must have known what his intentions were - if not, then the system is sadly inadequate.
2) AlanM points out that the NSF authorisation is subject traffic loading. I dont think that two helicopters, both flown by professional crews, way off any approach / departure paths to MCR, could be considered high traffic density, do you?
Actually the posting was meant to be a pat on the back for Mr. Plod rather than a poke in the eye for Manch. But there you go, just another pilot-ATC misunderstanding, I guess!