Bet that changes in the future. There is no need for either within the confines of the event, and this episode should seal the deal. It is so mobbed, losing a few patrons here and there would make little to no difference.
If those organizing the festival have not made those changes by now, they probably will not do so.
Since most festival organizers are intrinsically motivated to attract as many attendees as possible, they may be loathe to adopt the signage you desire.