I would say that is a consistent standard across all styles. What varies is how well a person can do a given technique relative to their rank.
For example, a jump spinning kick (your kick choice) is usually considered advanced at most schools who teach them. Some schools do not introduce the kick until a certain belt grade, some schools introduce them on or near day one of training. But the person who started learning the kick day one will not be evaluated on the kick until a certain amount of time in training, usually indicated by X number of promotions and a new belt color. They will be corrected and taught along the way, but not 'scored' on the kick.
So, at the end of the day, it is not the belt color that it important. It is how well the technique is performed.
As a general rule, it is easier on the school and instructor to compartmentalize the teaching of techniques, usually segregated by belts. This is universally done in some form or fashion.
But it can hamstring people who are exceptional and can progress at a faster rate than the average person. I have seen white belts who could grasp doing a jump spinning kick as well as any black belt on their first day learning the kick. And I have seen black belts who still need to work on their front stance.
I came up in more of the "throw all the material at them and let them figure it out" mode of teaching. It created a massive amount of information overload, but also did a very good job of motivating me to figure everything out. Some of this was on me because I was always asking for more.
I guess you can compare it to being spoon-fed versus getting the whole plate of food.