It doesn't seem to be the priority at times because there's so much else to do. Fortunately, he walked away with no permanent damage. It is dangerous but that's kind of our whole job, to make it as safe as possible and maintain the illusion. LAFA fight director Greg Dolph acknowledged a few major differences between staging fights in the movie studio and on the stage. They follow the same principles of creating the illusion, but the rules of the game change.
Theaters are a little different.
You have to take into consideration where the audience is. The style of combat choreography has changed considerably in the last 20 years. Historical combat has also evolved as a choreography discipline. The popularity of Tae Bo and kickboxing have started to draw attention to fight choreography as an athletic pastime, as well. It's become almost like a sport.