They said the same things about Picasso, Pollock, and Rothko. Whenever something new comes out that pushes the definitions of what is valid in the art community, there are more people who push back who don't understand it. Great art is rarely understood or appreciated by the masses in its time, whereas the art that is understood and lauded by the masses during its time is usually destined to be forgotten.
Personally, I like it, but don't love it. It's definitely a refreshing change in a category that has shown very little innovation since it's inception. The chaos of the texture juxtaposes the concept of the subject. The colors are unsettling, yet harmonic. I get a good sense of the moment from which it was "taken", which is a large part of what photography is all about. But I don't yet see much room to expand further along this path without it too suffering from repetition. I would be excited to see this developed into a series and see if it works beyond just this one.
In any event, the number of responses this has generated across the internet thus far is proof of its power. It is, at the least, thought provoking.