I think, everything what’s written here is correct – so the interesting analysis about what’s making the difference between a level 60-player and a level 55-player is really hitting the point.
As a level 50-player I am quite aware how difficult (one can say nearly impossible) it is to beat a player >55 due to their described capabilities (better opening, better mid-game, better end-game) – there is something within those higher levels which could be pictured as a mixture of broad experience (some 1.000 games), mathematical genius and some kind of pure magic.
You can have a look in several Youtube videos with the experts playing –and you might understand, what strategic possibilities the kingdoms are offering, you never ever would have detected. I am convinced that above 55 the region starts where many players never can step in – because this is the region of real talents paired with the ability to play everyday for several hours with raising passion and having a network of other experts to discuss about their strategies.
Important to say, that the component of luck, which is often mentioned as an essential element of dominion games, is more and more powered off in these higher levels – so top players even win against a (weaker), but lucky drawing opponent – their skills are trained enough to mostly turn the tide.
On the other hand the 55+ players are about 250 persons – which shows a 2% portion of the whole player range on this platform. With the 50+ players there are additional 650 persons – so it might be good to know that everyone playing in the big pool of the remaining 90% is having a chance to get into the Top1000, but only with ambition, some talent and some time.
Nevertheless you can say being at level 41 is much better than the overall average here, so I am a good player … - so finally everyone should follow his own targets to get happy, that's the main thing.