Interesting, but the way the article is presented...
Feels like it is written by Scr33p7 K1ddi3.
Half of the competition requires exploitation of network services. This year included x86, x86-64, sparc64, ppc, compiled python, a java interpreter statically linked into a x86 binary, among a bunch of other random ones. You can't be a script kiddie and do well in this competition.