Many people criticized GG's top knot during the OG. I'm not so sure why. Radionova also looks great in it. I had 14 years training of ballet. So I always think it is the most practical hair-do not just for ballet but also for daily lifestyle too. With more than 35 years practices, as the article sites, I mastered it pretty well even be able to do it with one hand. I no longer dance but my skill has been in high demands during my kid's ballet tests, recitals and skating competitions.
I'm not going to say that GG is the trendsetter but she definitely the forefront one.