Well, it doesn't matter if she thinks she's funny. If she is REPRSENTING a product then it's not acceptable to use words like "cripple" There is a line between a private citizen and a person working for a company. If she was held out as "represneing the UG" then I would think the owners (Frommers publishing) are not going to be happy with her 4th grade attempt at humor.
However before you BAN the UG from your bookshelf, they don't actually write it. They are part of the team.
However before you BAN the UG from your bookshelf, they don't actually write it. They are part of the team.