Profit is the key to creating liability here. You would need to license these things to use them and the holder of the trademarks and copyrights does not have to grant licenses.
Is this fair? Yes. WIthout the hard work behind Star Wars, the academy would have no business model.
that is 100 percent, Star wars it's a business and just like you can't copy Apple brand same as here, but the difference is that this movie became such a huge success because of fans at the 80's without it it's just a regular sci-fi movie, and while using the logo's it is a trademark violated I not see anything wrong with teaching people how to use Lightsabers.