The form is not the key thing. The impression is. I enjoy Marin and Nastya Gubanova. They are both terrific skaters. But I rewatched Zagitova's FS about 50 times already and still want more. I rewatched Gubanova's RJ about 10 times and have no desire to do it again. I could barely go through Marin's RJ the third time - it's generic and boring for me. And she is the best of the Japanese youngsters. Of course, it is just my perception. It has nothing to do with patriotism - I just like Alina's DQ. No patrotism will make me watch the stuff I don't like Russian skaters included. And I am fine with her balletic interpretation.
One more thing about her. I watched live ISU youtube stream. And I was dissatisfied with Zagitova because she missed the notes a bit. I just watched Marin and she was OK. Only when Alina started her interview did I realize that the sound was about 0.5 sec out of sync with the picture. Her program is extremely demanding to the exact timing of movements much more than others' (Marin is just an example - I was not uneasy about not skating to the music with anyone before Zagitova).
After that I just don't buy that she is lacking musicality and interpretation. And her positions are quite balletic.
http://i.ytimg.com/vi/Tg9z4bh1-Fo/hqdefault.jpg
https://lentachel.ru/netcat_files/multifile/2592/Alina_8.jpg
Yes, her arabesque is not as perfect as this one
http://www.balletschool.perm.ru/_res/graduates/259pic.jpg
But she is on ice and she is not a top level balerina.
She rushes in the junior programs as she is short on time. She can do longer spirals - she did it at senior competitions. The only thing which I found weak is her Ina Bauer.
And what about this one? Isn't it balletic?
https://pp.userapi.com/c837427/v837427327/31707/CZ22h4lCM6w.jpg
Compare it with say Marin's who can barely do 120 degrees. No, I do not agree with non-balletic argument.