Trying to think about this as a concept.
Not seeing it. No wonder it went to nothing.
The Japanese also did this and that makes more sense
Operating in the vast Pacific Ocean a submarine squadron with its own scouts can make sense. One these scouts was the only aircraft to bomb the continental USA.
But Royal Navy is a big no. Operating in bad weather trying to launch aircraft and then recovery seems like stupidity with extra steps. And a submarine on the surface is easy target while it hangs around waiting for its scout.