Pusser - your cut and paste post would have been more impressive had it accurately related to the rescue in question. The angler was rescued from rocks, not full immersion in the sea and although he had been in the water earlier, by the time he was winched up he had no hydrostatic squeeze and therefore a vertical lift was the right option. The speed of the rescue was improved by the choice of the single strop lift so the casualty was evacuated from the hostile environment expeditiously rather than getting him to lie down on rocks with breaking surf to put a second strop on.
Sorry to burst your crab-hating bubble - as ever people feel obliged to criticise what the RAF do in SAR, is it a feeling of inadequacy perhaps? Perhaps if you were the man on scene you would have done it differently but I rather bet you are not a SAR winchman or paramedic.