I'd guess that does underline that Yun not Chun is top of the heap in modern 3rd Strike, 4 of the last 6 Yuns including both finalists. I'd guess part of it is the kind of enviroment? I think Chun maybe more suited to Coop Cup games were its one and done, more health, simpler gameplan were as Yun can potentially be a bit of a glass canon.
Perhaps a case now that actually Ryu > Ken now as well with very little of the latter higher up? I do think Denjin only having one bar gets a bit overhyped as a disadvantage as its a super which can beused so frequently with the fireball trap not much meter actually goes to waste.
I do have to say I prefer Yun dominance to Chun dominance, makes for very high tempo games with a lot of hard reads and Genei Jin makes for more variety in use and gives a lot of structure to the matches with people having to attack/defend in turn.