I get the contest just fine. Like Daremo said though, if you use actual ARW products, how difficult is it to create something that "fits"? For the most part, the official toy line isn't available yet to most people. Seems to me, using offical product isn't in the spirit of the contest. I mean... head swapped Sol Commanders? Really?
Creating something that would "fit", is heavily implied to mean something non-official. Otherwise... what's the point? Here, let me make a Snake Eyes, using Snake Eyes parts. Oh wait... those figures/parts are readily available. Silly me.
What's next? A Greek mythology custom contest, but only after 1-2 people have the actual BFS figs from ebay?
I don't see what the issue is?
People can do and use whatever parts they want as long as they stay within the rules.
The judges will have to factor in all the entries using the voting criteria that has already set.