Right. The linked commit that is the subject of this thread is a DMCA takedown notice, which is a legal instrument designed to allow holders of copyrights to prevent their copyrighted materials from being distributed. Setting aside the merits of the DMCA, it has nothing to do with any definition of "copy" (yours, Oxford's, or Wikipedia's) at all. It is a remedy for copyright infrigement, which, again, is a legal term with a very specific definition[1]. No matter how creatively you define the word "copy", designmodo's actions simply are not equivalent to "copyright infringement" by any legal definition.
[1]http://www.law.cornell.edu/uscode/text/17/501