This is something I eagerly agree with. Multi-talented Alina Somova comes to mind as someone who challenges the boundaries, but also Makarova and Mezentseva who did it in the past.
As for Obraztsova I wish her the very best in her pursuit of illusive perfection and on the stage of her choice She is certainly a vey special dancer, although with somewhat limited diapason, my opinion, of course.
I didn't have Somova in mind when I was thinking of dancers breaking conventions while contributing to the artform. Actually someone like Sylvie Guillem fit my definition more so than Alina Somova, whom I happen to appreciate and really like in certain roles or milieus. Also, I fail to see the salience of comparing Somova to Obraztsova in this regard. To say that Somova is multifaceted while Obraztsova is not, in my opinion, is to overlook some obvious weaknesses on Somova's part. I don't believe Somova can do fast footwork/ petit allegro in La Sylphide or Ondine as well as more agile ballerinas, for example.
My point is, no ballerina is perfect. Obraztsova is not perfect just as Alina Somova is not perfect. They both have their own strengths and weaknesses, but Somova luckily had an easier path as an artist. While not taking away her hard work and diligence to improve as an artist, Somova has been given more wide range of roles to experiment with artistically, based in part to having right physique in the eyes of Mariinsky powers that be. In the same vein, it is Obraztsova who has had a harder time breaking out of molds or challenging conventions imposed by her home theatre. I, as a former dance student of 15+ years and as a ballet fan, can certainly applaud her ongoing efforts to push herself, the audience, and current Mariinsky dicatates in this direction.
Off topic and not directed at you, but one of my pet peeves if when ballet fans pit their favorites against each other, this is especially horrible on Youtube. There, demeaning comments about dancers are regularly posted without regard to tact and also feelings of dancers who might read such comments. I have too much respect for ballet dancers and their dedication to their art AND craft to engage in insults disguised as personal opinions. I hope to upkeep this practice on this forum.