Anyone, anyone, who thinks these pilots are there just to teach basic fast jet flying in a country which operates supersonic fighters from a carrier, and aims to have the world’s largest military by 2040 or thereabouts, ( for what purpose, except world military and economic domination) is living in another world.
You'll recall that when the Chinese bought the Riga aircraft carrier they said they wanted to turn it into a casino, only for it to later be commissioned into the PLAN as the Liaoning. The point being that whatever the Chinese might say about this RAF training scheme and how innocent it all is, you can be sure that from their perspective there's a lot more to it than that.