Earlier quoted context omitted.
There are lots of books that aren't on the reading list. Are they all "banned"?
No; however, they aren't on the reading list for potentially different reasons. This book (I have not read it) was on the reading list, but has now been stripped from the reading list because someone didn't like it and was vocal about this. A very contrived example of a similar vein would be: Cooking with a Microwave isn't on the reading list. 1984 isn't on the reading list because some bureaucrat didn't like how it…
Taking something off a reading list isn't interfering with access. ("They won't read it if it isn't on the list" doesn't change things as it applies to everything that's not on the list and you're arguing that the reason matters.)
There's nothing wrong with objecting to how a reading list is selected, but no matter what the reason, that process does not ban anything.
Yes labelling something as a "ban" has persuasive power, but that doesn't make the label accurate.
Such mis-labelling actually makes it harder to get people to react to actual wolves, so to speak.