I went back and looked into it. It's a good article up until the end. There's no conclusion to the story. There's no piloted flight video, there's no unmanned flight videos. The reader goes in expecting to see this thing in action, and they're left hanging.
I'd suggest a slight rewrite in the first paragraph introducing the article as a write up of a not yet complete project. I'd then conclude it with a paragraph giving the highlights of the project to date, what we can expect from the project, and how to follow along.
As it is, it just sort of stops, halfway through the article, with a link where readers can follow the project. With no way to know that there will be a follow up article on the topic, it's not quite complete enough for publication.
Thanks
Fred