IO, the point is that the RN does need aviators who have shiphandling experience & "ship drivers" that have aviation (inc Littoral) experience. With just small ship flights & the Culdrose Merlins, the RN & CHF will both be a lot poorer without it.
As I've said, if CHF remains largely light blue, fine, but they will need to become immersed in the maritime functions to a great degree.