I don't think there is something specifically "wrong" about your post that caused it to do poorly, and when I looked at it I gave it a vote because it seems like the kind of original content that Steemit desperately needs more of.
However, the current rewards climate on Steemit is heavily weighted toward posts that are about promoting Steem and Steemit, and the power users with enough voting weight to make posts start trending aren't spending a lot of time trawling through secondary content (which I'm defining as any content posted by someone who is not already an influential user) looking for hidden gems.
None of my posts have done well in the financial sense, but I don't take it personally and it hasn't caused me to judge them as being poor content. If you believe your content has value and keep posting, at some point, someone with voting weight will notice, and then more users will pile on. If you look through the posting history of people who have created popular content, you'll see that there aren't many "one-hit-wonders" there. Once a user creates a popular post, all their future posts tend to do much better than average. It's getting over that initial hump that can be extremely difficult.
That may not be the answer you're looking for, but it's what I think is currently true. Or maybe I'm just a poor judge of quality, including the quality of my own work. I guess you'll have to be the judge.
RE: Posts That Never Made It! - Let's discuss things and make it viral! -A second chance of exposure!