The original article states that the dog died within a day at the museum. I think it's safe to assume the dog was at the brink of death in the museum. The artist was obviously psychotic, but he's now forcing people to see this starving dog, which is apparently a commonplace sight in Costa Rica, which might lead to a change in Costa Rican animal rights.

Of course, this isn't about animal rights, it's about poverty and how starving people will always come before starving dogs.