Identity Crisis

I find myself wondering why this article is titled "identity crisis." There is no argument about any kind of identity crisis, and I find myself hard pressed to see much of any point of view. It's a summary of works that the author arbitrating into post modernism, but the works discussed don't seem very post-modern. Mixed media, theatrics and collage are postmodern but these works are just happening after modernism--they aren't a part of the post-modern movement.