NWF is claiming the right to determine when and where street performers can operate - partly for safety and access reasons, partly simply to ensure the smooth running of a busy event and to prevent artists from interfering with others' performances. Reggie is arguing that they cannot legally do this because it interferes with his constitutional rights.

The two seem to be incompatible in a public place. Either everyone agrees to submit to a level of control in the wider interest, or you have an event where anyone can do what they like, where they like, when they like and just hope that it all works out.