I cannot get my head around this. 20,000 books go to waste over 1 word!?! With the focus on the environment, what is going on!? Yes, some people may choose to be offended (Somewhat reasonably), however, it seems disproportionate to the actual issue in my opinion.
I can't really understand how her editors and proofreaders didn't catch this in the first place though.
For my money, a public apology would be plenty of recognition of the issue. It's unfortunate, but hardly even the most serious thing to happen in the last 24 hours.