Not really, it's a conclusion you're making on the basis of... I'm not sure what. It's an article talking about Soviet children's literature and the fact that much of it had an element of propaganda. Not that all of it was propaganda. The article talks about multiple aspects of it, its evolution, includes this particular anecdote, etc.
As of ideological adequateness, such abstract story could be pulled in any way with its ears properly grabbed
I think you've misunderstood what I'm saying here. Take a look at 'чуковщина' in his Wikipedia bio, for instance.