You didn't read my comment did you? The artists wouldn't have any power to play with and wouldn't have even have had this venue to practice their art if it was

You didn't read my comment did you? The artists wouldn't have any power to play with and wouldn't have even have had this venue to practice their art if it wasn't for the kindness of the building owner. The artists are setting a precedent for property owners that to prevent being "beaten like a dog", the best solution is to not let people practice their art on your property.