No, you need to understand that your specific narrow definition has not handed down by God, and is not more valid than others. US book banning has been a subject for so long now that you are tilling at windmills if you think you can deside what 10000s of people mean when they say banned.
Is a specific institution or library are banned by their decision makers to have a book - that book is banned in that context. If you don't buy this that fair, but don't come at me with your pedantry when I just answered your question.
> Is a specific institution or library are banned by their decision makers to have a book - that book is banned in that context.
By that reasoning, all PG-13 and R rated movies are "banned" just because your elementary school library doesn't carry them. Absurd, huh?
"10000s of people" can create new definitions of words as they choose, just don't be surprised when educated people think they're fools.