The first eight paragraphs are invaluable.
Ray Bradbury said something similar in an interview. When asked how he figured out how a character would do or say such and such he answered: "I asked them."
I found no need for further elaboration. I think most creative writers of fiction would agree.
His enthusiasm for seeing a new society building up from the collective heroism of the workers, and of the children, is glorious and catchy. It's almost a shame to look over his shoulder and see the oligarchs riding that wave behind then and today, as always was the way, that he could not.
Did not? Would not? It is said Yuri was more discerning of his environment than the surface of his writing implied, his message more deeper, more subtle. He was a good writer because he had to be to say what he wanted to say.
Still, the last two thirds read as something else tacked on, as though he was preaching to the choir, and not musing of a creative writer.
It's worth the fifteen minutes or so to review, if only for the beginning.