I don't buy the idea that a PPL which teaches you to fly from Goodwood to Bembridge is a good product.
Me neither, but frankly that's what my PPL did, and my CPL just taught me to do it better.
I did a longish cross country earlier in the week - nothing dramatic, but I was thinking en-route that a number of things that I was doing - landing at a non-radio strip, integrating DR, GPS and VOR into my navigation, making a straight in join at my return airfield because it saved a few minutes and the tower didn't mind: all of this is sensible piloting, none of it is in either syllabus. All learned, pretty much, by flying on my own or with more experienced pilots over a lot of hours, but all of which you could make a case should be taught somewhere in PPL, let-alone CPL.
G