"Photography is a Physical Means... not virtual..."

Depends on how you view it: You have a physical picture (or virtual if digital) representing a physical object (virtually).

Regardless, I am not R'osity, so I do not have the final say by any means. I am just offering my opinion on why they may exclude certain artistic endeavors. If you think of all the artistic endeavors that could be represented, and attempt to give them all equal time (so to speak), this would become one overcrowded and much more overwhelmed site indeed.