We seem to be mixing up about three different threads of discussion.
Re Timothy, if that's the clip I think it is, I said that how he takes a step with the unobstructed outside leg doesn't reveal anything about how he would take a step with the inside leg. But speaking more generally, simply winning the top spot does not mean there is no room for improvement - I would assume he hopes to turn out an even better performance next year. Nor is every champion going to exceed the performance of every previous one in all areas.
With Victor, yes, there are some obvious differences between the rising star and the open that really jump out once you know what to look for (once you can see through the general amazement and compare details to what you've seen others do). Speaking about the rising star and lower half of the open final in general, determined couples can go quite far with artistic sense and hard work, but getting to the next level, the very top of the top requires a higher level of understanding of the technique - often this is what is most clearly making the difference of the final few places. It would be tempting to think these issues should wait for then, however many of them concern the most basic actions and when adopted can work wonders for relatively beginner dancers - the very best couples are not really better dancers than those a few places down, they simply have knowledge of better methods. As a result, they are not only better dancers, but also far far more effective at helping students build the skills for effortless dancing.
The waltz syllabus clips here are unique in being just about the only freely available demonstration of basics online. This has made them something of a reference, however they also illustrate a point I was making that Jonathan then made himself: keeping the body stationary over the standing leg while sending the moving leg ahead can cause problems. In terms of providing alternatives, I'd love to present information in an organized and illustrated fashion, online and in person, but the dance establishment in general is simply not very welcoming to new voices (even bearing a traditional message), so serious efforts are going to have to wait until after retirement from competition.