That should be fine. The critical piece is that a reference is declared on a bean component, which allows the SwitchYard CDI extension to properly wire the @Reference qualifier. I don't believe CDITwo needs to be declared as a component, but you might want to add a reference to ASYService for BSYService. CDITwo is effectively executing within the context of ASYService, so any policies, etc. that might be declared with respect to ASYService will cascade appropriately.
Hope that helps,