That's somewhat to be expected. While a renn faire / renn fest may be set in a specific time period, and have historical characters, it is generally accepted that you'll encounter elves, fairies, dragons, bawdy tavern wenches, pirates, and all manner of completely inaccurate people and shows. Some of the shows will often have jokes/comments directed at recent modern day events. It helps draw a bigger crowd, as the main goal of a renn faire / renn fest is to make money; they are typically owned by a business or individuals looking to make money as the primary goal.
Living History is a whole different type of event. While you can get a good sized crowd for them, the nature of the event and participants is entirely different from what you'll see at 99% of the renn fests.
