I do an art podcast and visited this place for an ...

I do an art podcast and visited this place for an art night to chat with some of the artists. Well the owner was upset that the artists were handing out their business cards and information. When myself and others were saying they might be interested in buying the displaying artists' stuff online, the owner (?) or employee seemed to threaten that if we want to buy, we buy through the gallery not online. I feel bad for artists who might lose business because of these unprofessional employees.