I don't disagree with you Crab and if a SAR crew were responding to a vessel in the bay there, I realise that is the sort of process they would follow; however, in the absence of the 'low level route' I think it was unlikely that a crew would fly over an unexpected radar return at low level and I also suspect that the crew's arousal level would be higher in that situation than if they were following a known/reported route and missed one key piece of information, which is something we are all capable of doing.
My point is that Blacksod is a refuel point and as such is expected to be used on a regular basis, so there is no excuse for having to fly an ad-hoc IFR approach into it. The Authorities should be driving this forward for all operations where at the moment routine ad-hoc approaches are flown to regularly used sites, that includes corporate, SAR and HEMS in some areas.
Cheers
TeeS