One thing that we noticed, at least in the United States, is that there is a coming shortage of Kukkiwon high dan practitioners. There are a whole bunch of low ranks, 3rd to maybe 5th Dan range, but after that, it gets very rare. Also, the seniors, the 8th or 9th Dan types, are retiring and don't seem concerned that their highest Kukkiwon certified student is in that 3-5 range. What this means is that eventually, we will only have 3-5 dan or lower, and progressively less and less people will have access to higher dan, because their instructor retired and/or does not feel the need or desire to give them higher Kukkiwon rank.
Take this to the next level and many instructors who have mid level or low Kukkiwon dan feel that it is something special for them, and don't necessarily feel obligated to give their students the same certification, at the same level. This is one of the effects of the "me" generation line of thinking. They don't think about the big picture or the future, just what is in front of their faces at the moment, from their own me perspective.
I look through the list of Kukkiwon 6th-9th Dan from 1997 and see very few American borns in there. Several have passed away, retired or are not promoting their students through the Kukkiwon.
At some point, this will become a real issue. At that point, it won't be a matter of who "deserves" promotion, it will be a matter of who "can" promote.
I guess it shouldn't really matter, for me, from my perspective. After all, I got mine and it ain't a problem, for me. Let the juniors destroy the world and themselves, just like they destroyed the USTU.