I finally heard back from Equestria Daily · 6:56pm May 3rd, 2014
I'll just post the email here. SPOILERS for How Equestria Was Made:
Feo Takahari:
Thank you for submitting "How Equestria Was Made" to Equestria Daily. I found a lot to like here, but I have a couple of questions I want to pose. I'll ask you please to think about these questions, see if they're anything you want to address with a little rewriting, then resubmit the story as "back from Mars" through the regular story submission process.