Everything is art.
It may not be good art, it may not be art you understand, it may not even be art you can comprehend, but it is still art.
As Frunk said, art is about expression and craftmanship. Any form of expression, is a form of art. Paintings, drawings, stories, songs, dances, architecture, the code that makes up Windows, the monitor you sit infront of, conversations, heck even the posts we are making right now on this forum are art (albeit not the most impressive art form).
Anything in the world can be considered art. Some things are mass produced and commercialized, but are still art. Some things are mundane and inert, but are still art.
Also, remember not to over-analyse something. Perhaps the artist of the above abstract piece merely had no other thoughts coming to mind.