* I don't know what those changes in the book will cause, I'm not the author who carefully and selectively chose his words -- neither are the people that have decided to change the selection. *
First its enormous, then its tiny, then its something else. Before you know it, there's no relevance and its discarded as no longer culturally significant, and that's just the cultural identity portion of it (a shared mooring being removed).
Second, its not conspiratorial at all, there's actually a large body of vetted documentation in terms of the threats of political warfare dating back to the 1950s, and the more recent psychological blindspot research and manipulation which many of those threats and material choose to apply/target in some form to bypass critical thinking. This is what we are talking about when it comes to allowing an avenue for subversion and indoctrination into culturally significant works read primarily by children who have no defenses.
You have no idea how happy I would be to be wrong about this, but this is the real world, and letting these things happen is a recipe for disaster and an abandonment of generational contract responsibilities we have for our children.
Here's a link with vetted introductory material that's up to date and recent, for the uninformed, it is filled with references. https://www.usmcu.edu/Outreach/Marine-Corps-University-Press...
You're proposing a conspiratorial idea to a scenario that has a way easier explanation.