I think Crab is getting to the crux issue that can destory the effectiveness of a potential world class service that is the UK's first planned SAR helicopter service.
The MCA and its MRCCs are not part of the picture in the AIP. The Coastguard is there to provide a UK Govt civilian SAR branding and a management structure for day-to-day contractor relations.
In CAP 999, the responsibilities are those of the air operator and the CAA. The customer doesn't get a say. Either the air operator meets the standard or there is no AOC and no service. So why does the MCA try to get in amongst the training tasks beyond making sure their own people have appropriate training?